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Tao R, Yang B, Lin L, Munir S, Li Y, Wang X, Huang M. Biological characterization of emerging fungal pathogen Colletotrichum associated with mango (Mangifera indica L.) post-harvest anthracnose from Vietnam. Mol Biol Rep 2024; 51:557. [PMID: 38643317 DOI: 10.1007/s11033-024-09523-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 04/03/2024] [Indexed: 04/22/2024]
Abstract
BACKGROUND Post-harvest anthracnose (PHA) of mango is a devastating disease, which results in huge loss to mango producers and importers. Various species of PHA, diverse pathogenicity, and different resistance towards fungicides make it essential to evaluate the pathogen taxonomic status and biological characterization. METHODS AND RESULTS Two strains DM-1 and DM-2 isolated from the fruit of DaQing mango from Vietnam were identified as Colletotrichum fructicola and C. asianum respectively, based on the morphological features, along with the phylogenetic tree of ITS and ApMat combined sequences. The growth status of different Colletotrichum strains under different conditions was analyzed to reveal the biological characteristics. The optimum growth temperature of DM-1 and DM-2 was 28 °C and mycelia grew rapidly in the dark. Both strains could grow in media with pH 4-11, while the optimum pH value was 6. Maltose and soluble starch were the most suitable carbon source for DM-1 and DM-2 respectively, and the peptone was the most suitable nitrogen source for both strains. The lethal temperatures were recorded as 55 °C 5 min for DM-1, and 50 °C 10 min for DM-2. CONCLUSIONS To the best of our knowledge, it is the first study reporting the identification of the pathogens: C. fructicola and C. asianum responsible for postharvest fruit anthracnose of mango in Vietnam.
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Affiliation(s)
- Ruize Tao
- College of Agronomy and Life Sciences and Engineering Research Center for Urban Modern Agriculture of Higher Education in Yunnan Province, Kunming University, Kunming, Yunnan, 650214, China
| | - Bingjuan Yang
- College of Agronomy and Life Sciences and Engineering Research Center for Urban Modern Agriculture of Higher Education in Yunnan Province, Kunming University, Kunming, Yunnan, 650214, China
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
| | - Li Lin
- College of Agronomy and Life Sciences and Engineering Research Center for Urban Modern Agriculture of Higher Education in Yunnan Province, Kunming University, Kunming, Yunnan, 650214, China
| | - Shahzad Munir
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
| | - Yuchuan Li
- College of Agronomy and Life Sciences and Engineering Research Center for Urban Modern Agriculture of Higher Education in Yunnan Province, Kunming University, Kunming, Yunnan, 650214, China
| | - Xi Wang
- College of Agronomy and Life Sciences and Engineering Research Center for Urban Modern Agriculture of Higher Education in Yunnan Province, Kunming University, Kunming, Yunnan, 650214, China
| | - Min Huang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, Yunnan, 650201, China.
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Ahmed W, Dai Z, Zhang J, Shakeel Q, Kamaruzzaman M, Nosheen S, Mohany M, Ahmed A, Cai S, Wang Y, Gao Y, Ahmad M, Munir S, Wang X. Ralstonia solanacearum differentially modulates soil physicochemical properties and rhizospheric bacteriome of resistant and susceptible tobacco cultivars. Microbiol Res 2024; 281:127604. [PMID: 38280370 DOI: 10.1016/j.micres.2024.127604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 12/22/2023] [Accepted: 01/07/2024] [Indexed: 01/29/2024]
Abstract
Ralstonia solanacearum is a devastating soilborne pathogen which poses significant yield and economic losses to tobacco production globally. The impact of R. solanacearum on rhizosphere bacteriome and soil physicochemical characteristics in resistant and susceptible tobacco cultivars is poorly understood. This study aims to determine the effect of R. solanacearum on soil physicochemical parameters and rhizosphere bacteriome of resistant (K326) and susceptible (Hongda) tobacco cultivars at various growth stages. Results demonstrated that the contents of available potassium and phosphorus, as well as soil pH were significantly increased in K326 soils (CK and T2) compared with Hongda (T1) after 21, 42, and 63 days post-inoculation (dpi) of R. solanacearum except for available nitrogen which showed an opposite trend. The qPCR results showed a significant decrease in R. solanacearum population in rhizosphere of K326 (T2) compared to the Hongda (T1) at 21 and 63 dpi than that after 42 dpi. The rhizosphere bacteriome analysis through 16S rRNA amplicon sequencing revealed that rhizosphere bacterial community composition was significantly different between two tobacco cultivars (Hongda and K326) and this effect was more prominent after 63 dpi (93 days after post-transplantation), suggesting that each cultivar recruits a unique set of bacterial communities. There was no obvious difference observed in the rhizosphere bacteriome of CK (K326) and T2 (K326), which might be attributed to the same genetic makeup and inherent resistance of K326 to bacterial wilt infection. Analysis of co-occurrence networks revealed that the microbial network in T1 (Hongda) was more complex than those in T2 (K326) and CK (K326), while the networks in CK and T2 were almost identical. The present research highlights the time-course relationship between environmental factors and rhizosphere bacteriome of tobacco cultivars showing different levels of resistance against R. solanacearum. Conclusively, studying the plant-soil-microbe interaction system in susceptible and resistant tobacco cultivars may enable us to develop effective integrated disease control plans for the healthy production of tobacco crops.
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Affiliation(s)
- Waqar Ahmed
- Guangdong Province Key Laboratory of Microbial Signals and Disease Control, College of Plant Protection, South China Agricultural University, Guangzhou 510642, Guangdong, China.
| | - Zhenlin Dai
- Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Jinhao Zhang
- Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Qaiser Shakeel
- Cholistan Institute of Desert Studies, The Islamia University of Bahawalpur, Bahawalpur 63100, Punjab, Pakistan
| | - Md Kamaruzzaman
- Guangdong Province Key Laboratory of Microbial Signals and Disease Control, College of Plant Protection, South China Agricultural University, Guangzhou 510642, Guangdong, China
| | - Shaista Nosheen
- School of Agriculture Engineering and Food Science, Shandong University of Technology, Zibo 255049, Shandong, China
| | - Mohamed Mohany
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ayesha Ahmed
- Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Shujing Cai
- Guangdong Province Key Laboratory of Microbial Signals and Disease Control, College of Plant Protection, South China Agricultural University, Guangzhou 510642, Guangdong, China
| | - Yan Wang
- Guangdong Province Key Laboratory of Microbial Signals and Disease Control, College of Plant Protection, South China Agricultural University, Guangzhou 510642, Guangdong, China
| | - Yongfeng Gao
- Guangdong Province Key Laboratory of Microbial Signals and Disease Control, College of Plant Protection, South China Agricultural University, Guangzhou 510642, Guangdong, China
| | - Munir Ahmad
- Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Shahzad Munir
- Yunnan Agricultural University, Kunming 650201, Yunnan, China.
| | - Xinrong Wang
- Guangdong Province Key Laboratory of Microbial Signals and Disease Control, College of Plant Protection, South China Agricultural University, Guangzhou 510642, Guangdong, China.
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Zhao J, Wang Z, Jiao R, Wan Q, Wang L, Li L, Yang Y, Munir S. P-hydroxybenzoic acid positively affect the Fusarium oxysporum to stimulate root rot in Panax notoginseng. J Ginseng Res 2024; 48:229-235. [PMID: 38465213 PMCID: PMC10920001 DOI: 10.1016/j.jgr.2023.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 11/20/2023] [Accepted: 11/26/2023] [Indexed: 03/12/2024] Open
Abstract
Background Plant health is directly related to the change in native microbial diversity and changes in soil health have been implicated as one of the main cause of root rot. However, scarce information is present regarding allelopathic relationship of Panax notoginseng root exudates and pathogenic fungi Fusarium oxysporum in a continuous cropping system. Methods We analyzed P. notoginseng root exudate in the planting soil for three successive years to determine phenolic acid concentration using GC-MS and HPLC followed by effect on the microbial community assembly. Antioxidant enzymes were checked in the roots to confirm possible resistance in P. notoginseng. Results Total 29 allelochemicals in the planting soil extract was found with highest concentration (10.54 %) of p-hydroxybenzoic acid. The HPLC showing a year-by-year decrease in p-hydroxybenzoic acid content in soil of different planting years, and an increase in population of F. oxysporum. Moreover, community analysis displayed negative correlation with 2.22 mmol. L-1 of p-hydroxybenzoic acid correspond to an 18.1 % population of F. oxysporum. Furthermore, in vitro plate assay indicates that medium dose of p-hydroxybenzoic acid (2.5-5 mmol. L-1) can stimulate the growth of F. oxysporum colonies and the production of macroconidia, as well as cell wall-degrading enzymes. We found that 2-3 mmol. L-1 of p-hydroxybenzoic acid significantly increased the population of F. oxysporum. Conclusion In conclusion, our study suggested that p-hydroxybenzoic acid have negative effect on the root system and modified the rhizosphere microbiome so that the host plant became more susceptible to root rot disease.
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Affiliation(s)
- Jing Zhao
- College of Chemistry Biology and the Environment, Yuxi Normal University, Yuxi, Yunnan, China
| | - Zhandi Wang
- College of Chemistry Biology and the Environment, Yuxi Normal University, Yuxi, Yunnan, China
| | - Rong Jiao
- College of Chemistry Biology and the Environment, Yuxi Normal University, Yuxi, Yunnan, China
| | - Qionglian Wan
- College of Chemistry Biology and the Environment, Yuxi Normal University, Yuxi, Yunnan, China
| | - Lianchun Wang
- College of Chemistry Biology and the Environment, Yuxi Normal University, Yuxi, Yunnan, China
| | - Liangxing Li
- College of Chemistry Biology and the Environment, Yuxi Normal University, Yuxi, Yunnan, China
| | - Yali Yang
- College of Chemistry Biology and the Environment, Yuxi Normal University, Yuxi, Yunnan, China
| | - Shahzad Munir
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, Yunnan, China
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Xia M, Munir S, Li Y, Ahmed A, He P, Wu Y, Li X, Tang P, Wang Z, He P, Wang Y, He Y. Bacillus subtilis YZ-1 surfactins are involved in effective toxicity against agricultural pests. Pest Manag Sci 2024; 80:333-340. [PMID: 37682584 DOI: 10.1002/ps.7759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 08/27/2023] [Accepted: 09/08/2023] [Indexed: 09/09/2023]
Abstract
BACKGROUND Insect pests negatively affect crop quality and yield. The excessive use of chemical pesticides has serious impacts on the environment and food safety. Therefore, development of effective management strategies in the form of bio-agents have important agricultural applications. Tenebrio molitor, a storage pest, causes losses of grains, medicinal materials, and various agricultural and related products in the warehouse. Bacillus subtilis YZ-1 isolated from naturally deceased Pieris rapae has been found to exhibit significant toxicity against T. molitor. RESULTS Treatment with B. subtilis YZ-1 fermentation broth resulted in a 90-95% mortality rate of T. molitor within 36 h post-treatment, indicating some active substances may have insecticidal activity in the bacterial supernatant. A bioactivity-guided fractionation method was used to isolate the insecticidal compounds from YZ-1, which led to the identification of surfactins. Additionally, a surfactin deletion mutant YZ-1△srfAA was constructed and the surfactin production by the mutant YZ-1△srfAA was verified through liquid chromatography-mass spectrometry (LC-MS). Further, YZ-1△srfAA exhibited loss of insecticidal activity against T. molitor, Plutella xylostella and Achelura yunnanensis. The insecticidal activity and surfactins contents of several strains of Bacillus sp. were also tested and correlation was found between varying surfactins yield and insecticidal activity exhibited by different strains. CONCLUSION Conclusively, our results suggest that B. subtilis YZ-1 may provide a novel approach for plant protection against agricultural pests. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Mengyuan Xia
- State Key Laboratory for Conservation and a Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Shahzad Munir
- State Key Laboratory for Conservation and a Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Yongmei Li
- State Key Laboratory for Conservation and a Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
- School of Ecology and Environmental Science, Yunnan University, Kunming, China
| | - Ayesha Ahmed
- State Key Laboratory for Conservation and a Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Pengbo He
- State Key Laboratory for Conservation and a Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Yixin Wu
- State Key Laboratory for Conservation and a Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Xingyu Li
- State Key Laboratory for Conservation and a Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Ping Tang
- State Key Laboratory for Conservation and a Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Zaiqiang Wang
- State Key Laboratory for Conservation and a Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Pengfei He
- State Key Laboratory for Conservation and a Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Yuehu Wang
- Key Laboratory of Economic Plants and Biotechnology and Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Yueqiu He
- State Key Laboratory for Conservation and a Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
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Qian S, Ahmed A, He P, He P, Munir S, Xia M, Tang C, Tang P, Wang Z, Khan R, Li X, Wu Y, He Y. Bacillus amyloliquefaciens AK-12 Helps Rapeseed Establish a Protection against Brevicoryne brassicae. Int J Mol Sci 2023; 24:15893. [PMID: 37958876 PMCID: PMC10648069 DOI: 10.3390/ijms242115893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 10/25/2023] [Accepted: 10/27/2023] [Indexed: 11/15/2023] Open
Abstract
Aphids are a serious threat to rapeseed (Brassica napus L.) production, and cause unmanageable loss. Therefore, effective prevention and management strategies are urgently required to avoid losses. Bacillus amyloliquefaciens AK-12 isolated from a dead aphid with aphicidal activity was tagged with a green fluorescent protein through a natural transformation. The transformed strains were checked for stability and growth, and the best-performing strain was tested for its colonization inside and outside the rapeseed plant. The stability of AK-12-GFP reached more than 95%, and the growth curve was consistent with that of AK-12. After 30 days of treatment, the colonization of 1 × 106 CFU/g was recorded in rapeseed leaves. Interestingly, AK-12 reduced the aphid transmission rate compared with the control and improved the growth of the rapeseed seedlings. Meanwhile, the AK-12 strain also exhibited phosphorus, potassium-solubilizing, and nitrogen-fixing activity, and produced 2.61 µg/mL of IAA at 24 h. Regulation in the activity of four enzymes was detected after the AK-12 treatment. Phenylalanine ammonia lyase (PAL) was recorded at a maximum of 86.84 U/g after 36 h, and catalase (CAT) decreased after 48 h; however, peroxidase (POD) and polyphenol oxidase (PPO) reached the maximum within 12 h of AK-12 application. Additionally, important resistance genes related to these enzymes were upregulated, indicating the activation of a defense response in the rapeseed against aphids. In conclusion, defense enzymes and defense-related gene activation could improve the pest resistance in rapeseed, which has good application prospects for the future to be developed into biopesticide.
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Affiliation(s)
- Shixiong Qian
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China
- Faculty of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, China
| | - Ayesha Ahmed
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China
| | - Pengbo He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China
| | - Pengfei He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China
| | - Shahzad Munir
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China
| | - Mengyuan Xia
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China
| | - Chaoyun Tang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China
| | - Ping Tang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China
| | - Zaiqiang Wang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China
| | - Rizwan Khan
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China
| | - Xingyu Li
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China
| | - Yixin Wu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China
- Faculty of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, China
| | - Yueqiu He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China
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Naveed H, Munir S, Rafiq K, Tayyab A, Naseer N, Hussain I, Halim M, Mumtaz H. Comparison of nebulised 3% hypertonic saline with ipratropium bromide in treatment of children with bronchiolitis: a randomized control trial. Ann Med Surg (Lond) 2023; 85:5484-5490. [PMID: 37915631 PMCID: PMC10617857 DOI: 10.1097/ms9.0000000000001174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 08/04/2023] [Indexed: 11/03/2023] Open
Abstract
Introduction Several drugs are in use for nebulization in children with acute bronchiolitis and no study has yet been conducted to compare the treatment outcome of nebulized ipratropium bromide and nebulized 3% hypertonic saline in Pakistan. Objective The objective was to compare the treatment outcome of nebulized hypertonic saline and ipratropium bromide in children with acute bronchiolitis. Setting Department of Pediatrics. Study duration October 2019 to March 2020. Subjects and methods A total of one hundred (n=100) children of either sex diagnosed with acute bronchiolitis were enrolled and randomized either to be nebulized with 3% hypertonic saline or ipratropium bromide. Outcomes were assessed in terms of respiratory rate, heart rate, and SpO2 and respiratory distress assessment instrument score at different time intervals, length of hospital stay, and need of admission. Results Respiratory rate and SPO2 improved significantly at 60 min and 24 h, respiratory distress assessment instrument improved significantly at 30 min, 60 min, and 24 h after the treatment in patients who were nebulized with hypertonic saline when compared to those nebulized with ipratropium bromide. The length of hospital stay was significantly shorter (2.63 vs. 3.82 days, P=0.008) and a lesser number of patients needed hospital admission (22% vs. 44%, P=0.019) in patients who were nebulized with hypertonic saline when compared to those nebulized with ipratropium bromide. Conclusions Nebulization with 3% hypertonic saline resulted in significant improvement in symptoms, a shorter duration of hospital stay, and a lesser number of hospital admissions as compared to nebulization with ipratropium bromide in children with acute bronchiolitis.
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Affiliation(s)
| | | | | | | | | | | | | | - Hassan Mumtaz
- Clinical Research Associate, Maroof International Hospital Public Health Scholar, Health Services Academy
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Gautier A, Roffi M, Laanmets P, Munir S, Malik FTN, Romo AI, Maluenda G, Kuramitsu S, Angioi M, Wijns W, Saito S, Chevalier B. Complementary evidence on the performance of coronary stents generated by a randomized controlled trial and a worldwide registry. Am Heart J 2023; 261:35-44. [PMID: 36931370 DOI: 10.1016/j.ahj.2023.02.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 02/23/2023] [Accepted: 02/26/2023] [Indexed: 05/26/2023]
Abstract
BACKGROUND Large-scale registries can provide valuable complementary data to randomized controlled trials (RCT) for the postmarketing evaluation of coronary stents, but their scientific relevance remains debated. METHODS We sought to compare the evidence on the performance of a single coronary stent platform generated by the RCT for its regulatory approval and a well-conducted international registry. Patients treated with the Ultimaster coronary stent in the CENTURY II (CII-UM) trial (n = 551) were compared to patients in the real-world e-ULTIMASTER (e-UM) registry (n = 35,389). All major events were adjudicated by an independent clinical event committee in both studies. Propensity weighted analysis was used to balance baseline and procedural differences between the 2 populations. RESULTS Coronary artery disease was more complex in e-UM compared to CII-UM, including more acute coronary syndromes, multivessel disease, left main, arterial, or venous grafts, and chronic total occlusions (P < .005 for all). At one-year follow-up and after excluding periprocedural myocardial infarction (MI) there was no statistically significant difference between CII-UM and e-UM regarding all-cause death (hazard ratio [HR] 0.55, 95% confidence interval [CI] 0.26-1.20, P = .14), cardiac death (HR 0.71, 95% CI 0.29-1.72, P = .45), target lesion failure (HR 1.18, 95% CI 0.78-1.78, P = .44), and target vessel MI (HR 0.76, 95% CI 0.24-2.38, P = .63). However, target vessel revascularization rate was significantly higher in CII-UM than in e-UM, HR 1.78, 95% CI 1.23-2.56, P = .002. CONCLUSIONS A well-conducted large-scale registry can provide valuable complementary evidence to RCTs on the postmarket performance of new coronary stents, across a wider range of uses and various geographic areas.
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Affiliation(s)
- Alexandre Gautier
- Institut Cardiovasculaire Paris Sud, Hôpital Privé Jacques Cartier, Massy, France
| | - Marco Roffi
- Division of Cardiology, University Hospitals, Geneva, Switzerland
| | - Peep Laanmets
- North Estonia Medical Center Foundation, Tallinn, Estonia
| | - Shahzad Munir
- Department of Cardiology, Heart and Lung Centre, New Cross Hospital, Wolverhampton, United Kingdom
| | | | | | - Gabriel Maluenda
- San Borja Arriaran Hospital and University of Chile, Santiago de Chile, Chile
| | - Shoichi Kuramitsu
- Department of Cardiology, Kokura Memorial Hospital, Kitakyushu, Japan
| | | | - William Wijns
- Department of Cardiology, National University of Ireland Galway, Galway Ireland
| | - Shigeru Saito
- Department of Cardiology, Shonan Kamakura General Hospital, Kanagawa, Japan
| | - Bernard Chevalier
- Institut Cardiovasculaire Paris Sud, Hôpital Privé Jacques Cartier, Massy, France.
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Liu Y, Ahmed A, Munir S, He P, He PB, Wu Y, Tang P, Wang Z, Kong BH, He Y. First report of Aloe root and stem rot caused by Phytophthora palmivora in Yunnan Province, China. Plant Dis 2023. [PMID: 37311233 DOI: 10.1094/pdis-05-23-0927-pdn] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Aloe genus plants are perennial evergreen herb belonging to Liliaceae family which is widely used in food, medicine, beauty, and health care (Kumar et al. 2019). In August 2021, symptoms of root and stem rot was observed in approximately 20% of Aloe vera plantings in Yuanjiang County, Yunnan Province, China (23° 64' 53" N, 101° 99' 84" E). The most typical symptoms were stem and root rot, browning and necrosis of vascular tissues, gradual greening, and reddish-browning of leaves from bottom to top, abscission, and eventual plant death (Fig. S1). Therefore, to isolate and identify the pathogen, the plants showing the above symptoms were collected. The plant tissues were cut from the edges of root and stem lesions, followed by disinfection with 75% ethanol for 1 min, rinsed three times with sterilized distilled water, and cut into 3 × 3 mm small squares after excision of marginal tissues. The tissues were transferred to the oomycetes selective medium (Liu et al. 2022) and incubated at 28 °C in the dark for 3~5 days, and suspected colonies were purified. The colonies were then inoculated onto potato dextrose agar (PDA), V8-juice agar (V8), and oatmeal agar (OA) medium plates for morphological characteristics. Finally, 18 isolates with the same colonial and morphological characteristics were obtained from 30 lesioned tissue and one of them was named as ARP1. On PDA, V8 and OA medium plates, the ARP1 colonies were white. On PDA plate, the mycelia were dense and the colonies were petal-like; on V8 plate, the mycelia were cashmere and the colonies were radial or star-like. Whereas, on OA plate, the mycelia were cotton-like and the colonies were fluffy and radial (Fig. S2 A~C). Mycelium did not have septum with high branching and swelling. Sporangia were abundant, semi-papillate, varying in shape from ovoid-ellipsoid to long-ellipsoid, 18-26 × 45-63 μm (average: 22 × 54 μm, n = 30), sporangia released numerous zoospores from the papillate after maturation. The chlamydospores were spherical, 20-35 μm in diameter (average: 27.5 μm, n = 30) (Fig. S2 D~F). These morphological features were like those of the pathogenic species of the oomycetes (Chen et al. 2022). For the molecular characterization, the genomic DNA of the isolate was extracted using the cetyl trimethyl ammonium bromide method, and the translation elongation factor 1α (tef-1α) (Stielow et al. 2015), β-tubulin (β-tub) (Kroon et al. 2004) and internal transcribed spacer (ITS) (White et al. 1990) of isolated strain ARP1 were amplified using primer pairs EF1-1018F/EF1-1620R, TUBUF2/TUBUR1 and ITS1/ITS4, respectively. The tef-1α, β-tub genes and ITS region of ARP1 were directly sequenced and their sequence information was deposited in GenBank under accession numbers OQ506129, OQ506127 and OQ449628. ARP1 was clustered on the same evolutionary branch with Phytophthora palmivora (Fig. S3). To confirm the pathogenicity of ARP1, the main root of A. vera was wounded to 1 cm long and 2 mm deep with a scalpel blade followed by inoculation with 50 ml suspension of ARP1 zoospores at a concentration of 1 × 106 spores / ml per potted plant, and an equal volume of water as control. All inoculated plants were placed in the greenhouse at 28°C, 12 h / 12 h light / dark. After 15 dpi, the inoculated plants showed typical symptoms of wilted and drooping leaves and stem and root rot, same as observed in the field condition (Fig. S4). After inoculation with ARP1, a strain with the same morphological and molecular characteristics as the original isolate was re-isolated, confirming Koch's postulates. To our knowledge, this is the first report of P. palmivora causing root and stem rot of A. vera in the study region. This disease could be a potential risk for aloe production and therefore appropriate management measures should be taken.
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Affiliation(s)
- Yinlong Liu
- Yunnan Agricultural University, 12616, Plant Protection, Kunming, Yunnan, China;
| | - Ayesha Ahmed
- Yunnan Agricultural University, 12616, Plant Protection, Kunming, Yunnan, China;
| | - Shahzad Munir
- Yunnan Agricultural University, 12616, Plant Protection, Panlong, Kunming, Yunnan, China, 650201;
| | - Pengfei He
- Yunnan Agricultural University, Faculty of Plant Protection, Kunming, China;
| | - Peng-Bo He
- Yunnan Agricultural University, 12616, College of Plant Protection, Kunming, Yunnan, China;
| | - Yixin Wu
- Faculty of Agronomy and Biotechnology, Yunnan Agricultural University, kunming, China;
| | - Ping Tang
- Yunnan Agricultural University, 12616, Plant Protection, Kunming, Yunnan, China;
| | - Zaiqiang Wang
- Yunnan Agricultural University, plant protection, Department of plant protection, Yunnan Agricultural University, kunming China, kunming, United States, 650201;
| | - Bao Hua Kong
- Yunnan Agricultural University, 12616, Plant Protection, Kunming, Yunnan, China;
| | - Yueqiu He
- Faculty of Plant Protection, , Yunnan Agricultural University, kunming, China
- Faculty of Agronomy and Biotechnology, Yunnan Agricultural University, kunming, China;
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9
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Abstract
Nearly all plants and their organs are inhabited by endophytic microbes which play a crucial role in plant fitness and stress resilience. Harnessing endophytic services can provide effective solutions for a sustainable increase in agriculture productivity and can be used as a complement or alternative to agrochemicals. Shifting agriculture practices toward the use of nature-based solutions can contribute directly to the global challenges of food security and environmental sustainability. However, microbial inoculants have been used in agriculture for several decades with inconsistent efficacy. Key reasons of this inconsistent efficacy are linked to competition with indigenous soil microflora and inability to colonize plants. Endophytic microbes provide solutions to both of these issues which potentially make them better candidates for microbial inoculants. This article outlines the current advancements in endophytic research with special focus on endophytic bacilli. A better understanding of diverse mechanisms of disease control by bacilli is essential to achieve maximum biocontrol efficacy against multiple phytopathogens. Furthermore, we argue that integration of emerging technologies with strong theoretical frameworks have the potential to revolutionize biocontrol approaches based on endophytic microbes.
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Affiliation(s)
- Ayesha Ahmed
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, Yunnan, China
| | - Pengfei He
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, Yunnan, China
| | - Yueqiu He
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, Yunnan, China
| | - Brajesh K Singh
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith South, New South Wales, Australia
- Global Centre for Land Based Innovation, Western Sydney University, Penrith South, New South Wales, Australia
| | - Yixin Wu
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, Yunnan, China
| | - Shahzad Munir
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, Yunnan, China
| | - Pengbo He
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, Yunnan, China
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10
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He P, Cui W, Munir S, He P, Huang R, Li X, Wu Y, Wang Y, Yang J, Tang P, He Y, He P. Fengycin produced by Bacillus subtilis XF-1 plays a major role in the biocontrol of Chinese cabbage clubroot via direct effect and defense stimulation. J Cell Physiol 2023. [PMID: 36946428 DOI: 10.1002/jcp.30991] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 02/12/2023] [Accepted: 02/25/2023] [Indexed: 03/23/2023]
Abstract
Bacillus subtilis XF-1 is a well-investigated biocontrol agent against the biotrophic Plasmodiophora brassicae Woron., the causal agent of clubroot disease of cruciferous crops. The present study demonstrates that XF-1 could efficiently control clubroot disease via leaf spraying and provides an understanding of the biocontrol mechanisms. High-performance thin-layer chromatography (HTPLC) analysis indicated the presence of fengycin-type cyclopeptides in the supernatant. A ppsB deletion mutant of XF-1 resulted in no fengycin production, significantly reduced the lysis rate of testing spores in vitro and the primary infection rate of root hair in vivo, and decreased the protection value against clubroot disease under the greenhouse conditions. Confocal laser scanning microscopy proved that fengycin was not required for leaf internalization and root colonization. Moreover, the expression level of the ppsB gene in XF-1 was regulated by its cell density in root during interaction with P. brassicae. In addition, the ΔppsB mutant of XF-1 could not efficiently control disease because it led to a lower activation level of the jasmonic acid and salicylic acid signaling pathways in roots, which are necessary for the plant defense reaction upon pathogen invasion. Altogether, the present study provides a new understanding of specific cues in the interaction between B. subtilis and P. brassicae as well as insights into the application of B. subtilis in agriculture.
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Affiliation(s)
- Pengjie He
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
- Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Wenyan Cui
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
- Guizhou University of Traditional Chinese Medicine, Guiyang, China
| | - Shahzad Munir
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Pengbo He
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Ruirong Huang
- Plant Protection Institute, Jiangxi Academy of Agricultural Sciences, Nanchang, China
| | - Xingyu Li
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Yixin Wu
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Yuehu Wang
- Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Jing Yang
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Ping Tang
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Yueqiu He
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Pengfei He
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
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11
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Ahmed A, He P, He P, Wu Y, He Y, Munir S. Environmental effect of agriculture-related manufactured nano-objects on soil microbial communities. Environ Int 2023; 173:107819. [PMID: 36842382 DOI: 10.1016/j.envint.2023.107819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 01/30/2023] [Accepted: 02/10/2023] [Indexed: 06/18/2023]
Abstract
Agriculture-related manufactured nano-objects (MNOs) can revolutionize the crop production and help to achieve sustainable development goals. MNOs with diverse physico-chemical properties and ability to encapsulate and deliver active ingredients in controlled, targeted and stimuli responsive manner can enhance the efficiency while minimizing collateral damage to non-target organisms and environment. Application of MNOs in the form of nanopesticides and nanofertilizers is known to affect soil microbial communities both positively and negatively, but detailed studies with varying dose, type and environmental conditions are scarce. Therefore, it is imperative to understand the complex mechanisms and factors which shape the MNOs-microbial interactions through integrating state of the art technologies including omics (transcriptomics, metabolomics, and proteomics), artificial intelligence, and statistical frameworks. Lastly, we propose the idea of MNOs-mediated manipulation of soil microbiome to modify the soil microbial communities for improved microbial services. These microbial services, if harnessed appropriately, can revolutionize modern agriculture and help in achieving sustainable development goals.
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Affiliation(s)
- Ayesha Ahmed
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Pengfei He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Pengbo He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Yixin Wu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Yueqiu He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China.
| | - Shahzad Munir
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China.
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12
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Huang M, He P, He P, Wu Y, Munir S, He Y. Novel Virulence Factors Deciphering Klebsiella pneumoniae KpC4 Infect Maize as a Crossing-Kingdom Pathogen: An Emerging Environmental Threat. Int J Mol Sci 2022; 23:ijms232416005. [PMID: 36555647 PMCID: PMC9785288 DOI: 10.3390/ijms232416005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/21/2022] [Accepted: 11/29/2022] [Indexed: 12/23/2022] Open
Abstract
Klebsiella pneumoniae is not only a human and animal opportunistic pathogen, but a food-borne pathogen. Cross-kingdom infection has been focused on since K. pneumoniae was identified as the pathogen of maize, banana, and pomegranate. Although the pathogenicity of K. pneumoniae strains (from ditch water, maize, and human) on plant and mice has been confirmed, there are no reports to explain the molecular mechanisms of the pathogen. This study uncovered the K. pneumoniae KpC4 isolated from maize top rot for the determination of various virulence genes and resistance genes. At least thirteen plant disease-causing genes are found to be involved in the disruption of plant defense. Among them, rcsB is responsible for causing disease in both plants and animals. The novel sequence types provide solid evidence that the pathogen invades plant and has robust ecological adaptability. It is imperative to perform further studies on the verification of these KpC4 genes’ functions to understand the molecular mechanisms involved in plant−pathogen interactions.
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Affiliation(s)
- Min Huang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China
- College of Agronomy and Life Sciences and Engineering Research Center for Urban Modern Agriculture of Higher Education in Yunnan Province, Kunming University, Kunming 650214, China
| | - Pengfei He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China
| | - Pengbo He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China
| | - Yixin Wu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China
| | - Shahzad Munir
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China
- Correspondence: (S.M.); (Y.H.)
| | - Yueqiu He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China
- Correspondence: (S.M.); (Y.H.)
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13
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Bashir NH, Chen H, Munir S, Wang W, Chen H, Sima YK, An J. Unraveling the Role of Lac Insects in Providing Natural Industrial Products. Insects 2022; 13:1117. [PMID: 36555027 PMCID: PMC9784800 DOI: 10.3390/insects13121117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 11/30/2022] [Accepted: 11/30/2022] [Indexed: 06/17/2023]
Abstract
In the current era, products made from organic materials enjoy a privileged position because of their inherent safety. The eco-friendly properties of natural lac resins have increased their demand in many industries. It is secreted by sucking insects (Hemiptera, Kerriidae) and comprises three major components, viz., resin, dye, and wax. Lac insects are generally bivoltine in nature and are distributed in tropical and sub-tropical regions with complex multi-trophic habitats. Because of their sedentary habits, lac insects are more vulnerable to predators, parasitoids, squirrels, and rats, leading to a more than 50% reduction in production yield. To increase lac production, advanced-level molecular research is required to figure out the mechanism behind lac synthesis and secretion to improve lac yield and quality. The present review highlights metamorphosis, sexual dimorphism, multi-trophic habitat, host plants, and natural enemies of lac insects, lac composition, and applications, emphasizing the role of microbes, potential lac genes, and lac synthesis mechanisms in enhancing lac quality and production. The information provided here might be useful for lac researchers and for stakeholders aiming to make their products more eco-friendly.
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Affiliation(s)
- Nawaz Haider Bashir
- College of Biological Resource and Food Engineering, Qujing Normal University, Qujing 655011, China
| | - Huanhuan Chen
- College of Biological Resource and Food Engineering, Qujing Normal University, Qujing 655011, China
- Key Laboratory of Insect-Pollinator Biology of Ministry of Agriculture and Rural Affairs, Institute of Agricultural Research, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Shahzad Munir
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China
| | - Weiwei Wang
- Institute of Highland Forest Science, Chinese Academy of Forestry, Kunming 650224, China
| | - Hang Chen
- Institute of Highland Forest Science, Chinese Academy of Forestry, Kunming 650224, China
| | - Yong-Kang Sima
- Yunnan Academy of Forestry and Grassland Science, Kunming 650201, China
| | - Jiandong An
- Key Laboratory of Insect-Pollinator Biology of Ministry of Agriculture and Rural Affairs, Institute of Agricultural Research, Chinese Academy of Agricultural Sciences, Beijing 100193, China
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14
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Li J, He P, He P, Li Y, Wu Y, Lu Z, Li X, Yang Y, Wang Y, Guo J, Munir S, He Y. Potential of citrus endophyte Bacillus subtilis L1-21 in the control of Candidatus Liberibacter asiaticus in Asian citrus psyllid, Diaphorina citri. Pest Manag Sci 2022; 78:5164-5171. [PMID: 36114796 DOI: 10.1002/ps.7134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 08/08/2022] [Accepted: 08/18/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Asian citrus psyllid (ACP), also known as Diaphorina citri, is the natural vector of Candidatus Liberibacter asiaticus (CLas), which is responsible for Huanglongbing (HLB), a devastating citrus disease. Previously, the pathogen was successfully excluded from diseased citrus plants by using the indigenous endophyte Bacillus subtilis L1-21. However, the pathogen elimination and colonization potential of B. subtilis L1-21 in the carrier vector ACP, as well as the recruitment of native microbial communities of psyllid in the presence of endophytes, are still unknown. RESULTS Initially, we suggested that endophyte L1-21 reduced the CLas copies in ACP from 6.58 × 106 to 5.04 × 104 per insect after 48 h, however, the pathogen copies remained stable in the negative control. The endophyte was stable for 48 h after application. Among the bacterial genera those highlighted in ACP were Candidatus Liberibacter, Pseudomonas, Candidatus Profftella, Methylobacterium-Methylorubrum, Pantoea, Curtobacterium, Wolbachia, Actinomycetospora, and Bacillus. Interestingly, B. subtilis L1-21 easily colonizes the midgut of ACP but cannot be detected in eggs. When ACP with endophyte L1-21 was allowed to feed on new citrus leaves, the highest colonization was observed. We also found that psyllids carrying endophyte L1-21 after feeding on citrus leaves reduced the CLas copies in leaves on the 0, 3rd and 5th day from 8.18 × 10,4 2.6 × 10,3 and 0 pathogen copies/g fresh midvein, respectively. CONCLUSIONS We propose that B. subtilis L1-21 is a native endophyte in citrus and psyllid, which efficiently reduces the CLas pathogen in both citrus and psyllids, provides a more protective effect by increasing the number of cultivable endophytes, and successfully colonizes the midgut of ACP. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Jian Li
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Pengfei He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Pengbo He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Yongmei Li
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Yixin Wu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Zhanjun Lu
- College of Life Sciences, Gannan Normal University, Ganzhou, China
| | - Xingyu Li
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Yongchao Yang
- College of Biological and Agricultural Sciences, Honghe University, Mengzi, China
| | - Yuehu Wang
- Key Laboratory of Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences (CAS), Kunming, China
| | - Jun Guo
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agricultural Sciences, Baoshan, China
| | - Shahzad Munir
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Yueqiu He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
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15
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Liu Y, He P, He P, Munir S, Ahmed A, Wu Y, Yang Y, Lu J, Wang J, Yang J, Pan X, Tian Y, He Y. Potential biocontrol efficiency of Trichoderma species against oomycete pathogens. Front Microbiol 2022; 13:974024. [PMID: 36147847 PMCID: PMC9487998 DOI: 10.3389/fmicb.2022.974024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 08/03/2022] [Indexed: 11/13/2022] Open
Abstract
Plant health is of utmost importance for optimal agricultural production and sustainability. Unfortunately, biotic and abiotic factors put a major constraint on crop safety and productivity. Plant diseases caused by oomycetes inflict serious damage to various crops. Moreover, the injudicious use of chemical pesticides poses threats related to pesticide resistance development in pathogens and environmental pollution. Biocontrol offers an effective solution for disease control; however, research on biocontrol of oomycete-related diseases is scarce. Thus, this study undertakes the screening of biocontrol resources for the effective management of oomycete-related plant diseases. In this regard, 86 isolates of Trichoderma spp. were assessed against Phytophthora nicotianae, P. capsici, Pythium vexans, P. ultimum, and P. dissotocum through dual culture assay. Furthermore, the antagonistic effect of selected isolates was studied against tobacco black shank disease and damping-off of cucumber seedlings in the greenhouse. The relative control effect of the three antagonistic Trichoderma strains AR-4, Tv-1, and ST4-1 on tobacco black shank was more than 60%, which was not significantly different from 6.88 gl−1 fluopicolide–propamocarb. Whereas, the relative control effect of Trichoderma AR-4 and ST4-1 on damping-off of cucumber seedlings was 80.33% and 82.67%, respectively, which were significantly higher than Trichoderma Tv-1 (35.49%) and fluopicolide–propamocarb (47.82%). According to the morphological and molecular characterization, the fungal strains AR-4, Tv-1, and ST4-1 were identified as Trichoderma koningiopsis, T. asperellum, and T. gamsii, respectively. In conclusion, the strains exhibited a strong antagonistic effect against oomycete pathogens and can be integrated into disease management strategies.
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Affiliation(s)
- Yinglong Liu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Pengbo He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Pengfei He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Shahzad Munir
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Ayesha Ahmed
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Yixin Wu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Yuling Yang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Junping Lu
- Hongta Tobacco (Group) Co. Ltd., Yuxi, China
| | | | - Jizhou Yang
- Hongta Tobacco (Group) Co. Ltd., Yuxi, China
| | - Xinlong Pan
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Yangyang Tian
- Hongta Tobacco (Group) Co. Ltd., Yuxi, China
- *Correspondence: Yangyang Tian
| | - Yueqiu He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
- Yueqiu He
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Liu Y, He P, Munir S, He P, Wu Y, Asad S, Tang Z, He Y. Phytophthora cinnamomi causing root rot on Rhododendron lapponicum and control it using potential biocontrol agents. J Basic Microbiol 2022; 62:937-947. [PMID: 35554952 DOI: 10.1002/jobm.202200034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 04/05/2022] [Accepted: 04/23/2022] [Indexed: 11/05/2022]
Abstract
Rhododendron lapponicum (R. lapponicum) is a dwarf Rhododendron species, which is severely infected with root rot and wilt in Yunnan province, China. However, the causal agent causing these symptoms was unknown. An isolate, Pci-1 was identified as Phytophthora cinnamomi, based on its morphology and the sequences of β-tubulin, internal transcribed spacer, and Ypt1 genes and verified according to the Koch's postulate. We found that this pathogen could infect 14 species of plants, including Althaea rosea, Viburnum cylindricum, and Brassica napus. Strain Pci-1 could cause R. lapponicum to wither and die; and it grows best in an oat medium with pH 7.0 - 8.0 and an optimum temperature of 27°C. We suggest that the rhizosphere of R. lapponicum treated with biocontrol strains Paenibacillus polymyxoides P2-5 and Trichoderma asperellum Tv-1 showed a significant inhibitory effect on pathogen Pci-1. The inhibitory effect of 70% dimethomorph + cymoxanil was significantly higher with EC50 and EC90 values of 0.1894 and 0.3618 a.i. µg/ml, respectively. Greenhouse experiments revealed that the pathogen load is decreased in the presence of potential antagonists. This study provides fundamentals on risk assessment and theoretical support for the management of P. cinnamomi pathogen and contributes significantly to the planting of forest and horticultural crops in a disease-free environment.
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Affiliation(s)
- Yinglong Liu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
| | - Pengbo He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
| | - Shahzad Munir
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
| | - Pengfei He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
| | - Yixin Wu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
| | - Suhail Asad
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
| | - Zaixiang Tang
- Kunming Haida New Flower Landscape Horticultural Seed and Seedling Co., Ltd., Kunming, China
| | - Yueqiu He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
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17
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Ahmed W, Dai Z, Liu Q, Munir S, Yang J, Karunarathna SC, Li S, Zhang J, Ji G, Zhao Z. Microbial Cross-Talk: Dissecting the Core Microbiota Associated With Flue-Cured Tobacco ( Nicotiana tabacum) Plants Under Healthy and Diseased State. Front Microbiol 2022; 13:845310. [PMID: 35495684 PMCID: PMC9048796 DOI: 10.3389/fmicb.2022.845310] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 01/28/2022] [Indexed: 01/16/2023] Open
Abstract
Bacterial wilt caused by Ralstonia solanacearum is a devastating disease of flue-cured tobacco production which poses significant yield losses all around the world. In this study, we evaluated the rhizosphere microbiome of healthy and bacterial wilt-infected (diseased) flue-cured tobacco plants through amplification of V3-V4 and ITS1-5f variable regions of 16S and internal transcribed spacer (ITS) rRNA. The study was based on the location (Qujing, Shilin, and Wenshan), plant components (rhizosphere soil and roots), and sample types (healthy and diseased) to assess the diversity of bacterial and fungal communities. Bacterial and fungal communities present in roots primarily emanated from rhizosphere soil. Healthy flue-cured tobacco plants exhibit high microbial diversity compared to diseased plants. Among three variables, plant components significantly influence the diversity of microbial communities, whereas rhizosphere soil harbors higher microbial diversity than roots. Bacterial phyla Cyanobacteria and Proteobacteria were found in high relative abundance in roots and rhizosphere soil samples, respectively. As far as fungi is concerned, a high relative abundance of Ascomycota and Basidiomycota was found in both rhizosphere soil and root. Bacterial genera such as Bacillus, Bradyrhizobium, Ensifer, Neorhizobium, and Lysobacter related to plant growth promotion and disease suppressing abilities were dominant than fungal genera. Analysis of relative abundance at specie-level revealed that most fungal species are pathogenic to flue-cured tobacco and could provide a conducive environment for wilt infection. In conclusion, R. solanacearum significantly influences the microbial diversity of flue-cured tobacco plants and negatively affects the bacterial community composition. Altogether, our study demonstrates the complexity of bacterial and fungal communities that possibly interact with each other (microbe–microbe) and host (host–microbe). This cross-talk could be helpful for healthy flue-cured tobacco plant growth and to induce resistance against bacterial wilt disease.
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Affiliation(s)
- Waqar Ahmed
- College of Resources and Environment, Yunnan Agricultural University, Kunming, China.,State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China.,Key Laboratory of Agro-Biodiversity and Pest Management of Ministry of Education, Yunnan Agricultural University, Kunming, China
| | - Zhenlin Dai
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China.,Key Laboratory of Agro-Biodiversity and Pest Management of Ministry of Education, Yunnan Agricultural University, Kunming, China
| | - Qi Liu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China.,Key Laboratory of Agro-Biodiversity and Pest Management of Ministry of Education, Yunnan Agricultural University, Kunming, China
| | - Shahzad Munir
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Jun Yang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China.,Key Laboratory of Agro-Biodiversity and Pest Management of Ministry of Education, Yunnan Agricultural University, Kunming, China.,College of Resources, Environment, and Chemistry, Chuxiong Normal University, Chuxiong, China
| | - Samantha C Karunarathna
- Biological Resources Protection and Utilization, College of Biological Resources and Food Engineering, Qujing Normal University, Qujing, China
| | - Shichen Li
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Jinhao Zhang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China.,Key Laboratory of Agro-Biodiversity and Pest Management of Ministry of Education, Yunnan Agricultural University, Kunming, China
| | - Guanghai Ji
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China.,Key Laboratory of Agro-Biodiversity and Pest Management of Ministry of Education, Yunnan Agricultural University, Kunming, China
| | - Zhengxiong Zhao
- College of Resources and Environment, Yunnan Agricultural University, Kunming, China
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18
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Kouser S, Munir S, Abedullah. Does communal women empowerment mitigate the risk of acute respiratory infection among under-five children in Pakistan? Public Health 2022; 205:133-138. [DOI: 10.1016/j.puhe.2022.01.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 11/05/2021] [Accepted: 01/28/2022] [Indexed: 11/30/2022]
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19
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Munir S, Li Y, He P, He P, He P, Cui W, Wu Y, Li X, Li Q, Zhang S, Xiong Y, Lu Z, Wang W, Zong K, Yang Y, Yang S, Mu C, Wen H, Wang Y, Guo J, Karunarathna SC, He Y. Corrigendum: Defeating Huanglongbing Pathogen Candidatus Liberibacter asiaticus With Indigenous Citrus Endophyte Bacillus subtilis L1-21. Front Plant Sci 2022; 13:884890. [PMID: 35422833 PMCID: PMC9004541 DOI: 10.3389/fpls.2022.884890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Accepted: 03/09/2022] [Indexed: 06/14/2023]
Abstract
[This corrects the article DOI: 10.3389/fpls.2021.789065.].
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Affiliation(s)
- Shahzad Munir
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Yongmei Li
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Pengbo He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Pengfei He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Pengjie He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Wenyan Cui
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Yixin Wu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Xingyu Li
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Qi Li
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Sixiang Zhang
- Binchuan Institute for Food and Medicine Inspection and Testing, Binchuan, China
| | - Yangsu Xiong
- Binchuan Institute for Food and Medicine Inspection and Testing, Binchuan, China
| | - Zhanjun Lu
- College of Life Sciences, Gannan Normal University, Ganzhou, China
| | - Wenbiao Wang
- Binchuan Institute for Food and Medicine Inspection and Testing, Binchuan, China
| | - Kexian Zong
- Binchuan Institute for Food and Medicine Inspection and Testing, Binchuan, China
| | - Yongchao Yang
- Institute of Upland Crops, Wenshan Academy of Agricultural Sciences, Wenshan, China
| | - Shaocong Yang
- Institute of Crop Fertilization, Yuxi Academy of Agricultural Sciences, Yuxi, China
| | - Chan Mu
- Institute of Crop Fertilization, Yuxi Academy of Agricultural Sciences, Yuxi, China
| | - Heming Wen
- Institute of Upland Crops, Wenshan Academy of Agricultural Sciences, Wenshan, China
| | - Yuehu Wang
- Key Laboratory of Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences (CAS), Kunming, China
| | - Jun Guo
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agricultural Sciences, Baoshan, China
| | - Samantha C. Karunarathna
- Center for Mountain Futures (CMF), Kunming Institute of Botany, Chinese Academy of Sciences (CAS), Kunming, China
| | - Yueqiu He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
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20
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Adlam D, Zarebinski M, Uren NG, Ptaszynski P, Oldroyd KG, Munir S, Zaman A, Contractor H, Kiss RG, Édes I, Szachniewicz J, Nagy GG, Garcia MJ, Tomcsanyi J, Irving J, Sharp ASP, Musialek P, Lupkovics G, Shirodaria C, Selvanayagam JB, Quinn P, Ng L, Roth M, Insko MA, Haber B, Hill S, Siegel L, Tulloch S, Channon KM. A Randomized, double-blind, dose ranging clinical trial of intravenous FDY-5301 in acute STEMI patients undergoing primary PCI. Int J Cardiol 2022; 347:1-7. [PMID: 34774885 DOI: 10.1016/j.ijcard.2021.11.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 08/31/2021] [Accepted: 11/07/2021] [Indexed: 11/05/2022]
Abstract
BACKGROUND Ischemia-reperfusion injury remains a major clinical problem in patients with ST-elevation myocardial infarction (STEMI), leading to myocardial damage despite early reperfusion by primary percutaneous coronary intervention (PPCI). There are no effective therapies to limit ischemia-reperfusion injury, which is caused by multiple pathways activated by rapid tissue reoxygenation and the generation of reactive oxygen species (ROS). FDY-5301 contains sodium iodide, a ubiquitous inorganic halide and elemental reducing agent that can act as a catalytic anti-peroxidant. We tested the feasibility, safety and potential utility of FDY-5301 as a treatment to limit ischemia-reperfusion injury, in patients with first-time STEMI undergoing emergency PPCI. METHODS STEMI patients (n = 120, median 62 years) presenting within 12 h of chest pain onset were randomized at 20 PPCI centers, in a double blind Phase 2 clinical trial, to receive FDY-5301 (0.5, 1.0 or 2.0 mg/kg) or placebo prior to reperfusion, to evaluate the feasibility endpoints. Participants underwent continuous ECG monitoring for 14 days after PPCI to address pre-specified cardiac arrhythmia safety end points and cardiac magnetic resonance imaging (MRI) at 72 h and at 3 months to assess exploratory efficacy end points. RESULTS Intravenous FDY-5301 was delivered before re-opening of the infarct-related artery in 97% participants and increased plasma iodide levels ~1000-fold within 2 min. There was no significant increase in the primary safety end point of incidence of cardiac arrhythmias of concern. MRI at 3 months revealed median final infarct sizes in placebo vs. 2.0 mg/kg FDY-5301-treated patients of 14.9% vs. 8.5%, and LV ejection fractions of 53.9% vs. 63.2%, respectively, although the study was not powered to detect statistical significance. In patients receiving FDY-5301, there was a significant reduction in the levels of MPO, MMP2 and NTproBNP after PPCI, but no reduction with placebo. CONCLUSIONS Intravenous FDY-5301, delivered immediately prior to PPCI in acute STEMI, is feasible, safe, and shows potential efficacy. A larger trial is justified to test the effects of FDY-5301 on acute ischemia-reperfusion injury and clinical outcomes. CLINICAL TRIAL REGISTRATION CT.govNCT03470441; EudraCT 2017-000047-41.
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Affiliation(s)
- David Adlam
- Department of Cardiovascular Sciences, NIHR Leicester Biomedical Research Centre, University of Leicester, UK
| | - Maciej Zarebinski
- Invasive Cardiology Dept. Western Hospital, Grodzisk Mazowiecki, Poland
| | - Neal G Uren
- Edinburgh Heart Centre, Royal Infirmary, Edinburgh, UK
| | - Pawel Ptaszynski
- Department of Electrocardiology, Medical University of Lodz, Poland; Central University Hospital, Lodz, Poland
| | - Keith G Oldroyd
- West of Scotland Regional Heart and Lung Centre, Golden Jubilee National Hospital, Glasgow, UK
| | - Shahzad Munir
- Cardiology Department, Wolverhampton Heart and Lung Centre, New Cross Hospital, Wolverhampton Road, Wolverhampton, UK
| | - Azfar Zaman
- Freeman Hospital and Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK
| | - Hussain Contractor
- Department of Cardiovascular Medicine, Manchester University NHS Foundation Trust, Wythenshawe Hospital, Manchester, UK
| | | | - István Édes
- Department of Cardiology, Debrecen University, Debrecen, Hungary
| | | | - Gergely Gyorgy Nagy
- Borsod-Abauj-Zemplen County Central Hospital and University Teaching Hospital, 1st Department of Internal Medicine and Cardiology, Miskolc, Hungary
| | - Mario J Garcia
- Division of Cardiology, Montefiore Medical Center, Bronx, NY, USA
| | - János Tomcsanyi
- Department of Cardiology, St. John of Brother of God Hospital, Budapest, Hungary
| | - John Irving
- Department of Cardiology, Ninewells Hospital, Dundee, UK
| | | | - Piotr Musialek
- Jagiellonian University Department of Cardiac and Vascular Diseases, John Paul II Hospital, Krakow, Poland
| | - Géza Lupkovics
- Department of Cardiology, St. Raphael Hospital of Zala County, Zalaegerszeg, Hungary
| | | | - Joseph B Selvanayagam
- Flinders University and South Australian Health and Medical Research Institute, Adelaide, SA, Australia
| | - Pauline Quinn
- Department of Cardiovascular Sciences, NIHR Leicester Biomedical Research Centre, University of Leicester, UK
| | - Leong Ng
- Department of Cardiovascular Sciences, NIHR Leicester Biomedical Research Centre, University of Leicester, UK
| | - Mark Roth
- Faraday Pharmaceuticals Inc., Seattle, USA
| | | | - Ben Haber
- Faraday Pharmaceuticals Inc., Seattle, USA
| | | | | | | | - Keith M Channon
- Division of Cardiovascular Medicine, British Heart Foundation Centre of Research Excellence, National Institute for Health (NIHR) Oxford Biomedical Research Centre, Oxford University Hospitals NHS Foundation Trust and University of Oxford, John Radcliffe Hospital, Oxford, UK.
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21
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Li Y, Xia M, He P, Yang Q, Wu Y, He P, Ahmed A, Li X, Wang Y, Munir S, He Y. Developing Penicillium digitatum Management Strategies on Post-Harvest Citrus Fruits with Metabolic Components and Colonization of Bacillus subtilis L1-21. J Fungi (Basel) 2022; 8:80. [PMID: 35050020 PMCID: PMC8777893 DOI: 10.3390/jof8010080] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/03/2022] [Accepted: 01/10/2022] [Indexed: 12/13/2022] Open
Abstract
Citrus is among the most important plants in the fruit industry severely infected with pathogens. Citrus green mold caused by Penicillium digitatum is one of the most devastating diseases during post-harvest stages of citrus fruit. In this study, a potential endophyte Bacillus subtilis L1-21, isolated from healthy citrus plants, was assessed for its biocontrol activity against the pathogen P. digitatum. Based on an in vitro crosstalk assay, we suggested that B. subtilis L1-21 inhibits the pathogen with an inhibition zone of 3.51 ± 0.08 cm. Biocontrol efficacy was highest for the fermented culture filtrate of B. subtilis L1-21. Additionally, using GC-MS analysis, 13 compounds were detected in the extract of this endophyte. The culture filtrate in Landy medium could enlarge and deform pathogen spores and prevent them from developing into normal mycelium. Accordingly, the Landy culture filtrate of B. subtilis L1-21 was stable in the temperature range of 4-90 °C and pH of 3-11. Further, MALDI-TOF-MS for B. subtilis L1-21 detected surfactin, fengycin, bacillaene and bacilysin as potential antifungal compounds. GFP-tagged B. subtilis L1-21 easily colonized in citrus fruit peel and pulp, suggesting its role in eliminating the fungal pathogen. Altogether, it is highly expected that the production of antifungal compounds, and the colonization potential of B. subtilis L1-21 are required against the post-harvest P. digitatum pathogen on citrus fruit.
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Affiliation(s)
- Yongmei Li
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China; (Y.L.); (M.X.); (P.H.); (Q.Y.); (Y.W.); (P.H.); (A.A.); (X.L.)
| | - Mengyuan Xia
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China; (Y.L.); (M.X.); (P.H.); (Q.Y.); (Y.W.); (P.H.); (A.A.); (X.L.)
- Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China;
| | - Pengbo He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China; (Y.L.); (M.X.); (P.H.); (Q.Y.); (Y.W.); (P.H.); (A.A.); (X.L.)
| | - Qiaoming Yang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China; (Y.L.); (M.X.); (P.H.); (Q.Y.); (Y.W.); (P.H.); (A.A.); (X.L.)
| | - Yixin Wu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China; (Y.L.); (M.X.); (P.H.); (Q.Y.); (Y.W.); (P.H.); (A.A.); (X.L.)
- Faculty of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, China
| | - Pengfei He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China; (Y.L.); (M.X.); (P.H.); (Q.Y.); (Y.W.); (P.H.); (A.A.); (X.L.)
| | - Ayesha Ahmed
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China; (Y.L.); (M.X.); (P.H.); (Q.Y.); (Y.W.); (P.H.); (A.A.); (X.L.)
| | - Xiangsong Li
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China; (Y.L.); (M.X.); (P.H.); (Q.Y.); (Y.W.); (P.H.); (A.A.); (X.L.)
- Faculty of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, China
| | - Yuehu Wang
- Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China;
| | - Shahzad Munir
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China; (Y.L.); (M.X.); (P.H.); (Q.Y.); (Y.W.); (P.H.); (A.A.); (X.L.)
| | - Yueqiu He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming 650201, China; (Y.L.); (M.X.); (P.H.); (Q.Y.); (Y.W.); (P.H.); (A.A.); (X.L.)
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22
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Shahzad M, Chaudhry M, Shahid MG, Ahsan A, Dar M, Mazhar B, Mustafa M, Saeed S, Munir S, Ali NM. Antibacterial activity of Ricinus communis plant extract against antibiotic resistant Helicobacter pylori and Gluconobacter oxydans isolated from fresh apple juices samples. BRAZ J BIOL 2021; 84:e253203. [PMID: 34932677 DOI: 10.1590/1519-6984.253203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 07/27/2021] [Indexed: 11/21/2022] Open
Abstract
Bacteria were isolated from samples of Fresh Apple juices from shops of three different localities of Lahore. Analysis of samples from Liberty, Anarkali and Yateem khana Markets show different levels of contamination. There were pathogenic and non-pathogenic bacteria in all samples and were identified by the morphological and biochemical tests. Most of the plasmids of pathogenic bacteria were 4kb in their molecular size. Ribotyping of 16S ribosomal RNA gene sequencing was done to confirm Helicobacter pylori strain and Gluconobacter oxydans. The highest sensitivity of 210mm was shown by Enterobacter sp. against Aztheromysine disk (15µg) while Micrococcus sp. was highly resistant against all of the Antibiotics applied. The antibiotic resistance of pathogenic bacteria was also checked against Ricinus communis plant's extracts, all isolated bacterial pathogens were resistant but only, E.coli was inhibited at 300µl of the extracts. Presence of pathogenic bacteria in Apple juice samples was due to contamination of sewage water in drinking water while some of these pathogenic bacteria came from Apple's tree and other from store houses of fruits.
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Affiliation(s)
- M Shahzad
- Government College University - GCU, Department of Zoology, Lahore, Pakistan
| | - M Chaudhry
- Government College University - GCU, Department of Zoology, Lahore, Pakistan
| | - M G Shahid
- Government College University - GCU, Department of Zoology, Lahore, Pakistan
| | - A Ahsan
- Government College University - GCU, Department of Zoology, Lahore, Pakistan
| | - M Dar
- Government College University - GCU, Department of Zoology, Lahore, Pakistan
| | - B Mazhar
- Government College University - GCU, Department of Zoology, Lahore, Pakistan
| | - M Mustafa
- Government College University - GCU, Department of Zoology, Lahore, Pakistan
| | - S Saeed
- Government College University - GCU, Department of Zoology, Lahore, Pakistan
| | - S Munir
- Government College University - GCU, Department of Zoology, Lahore, Pakistan
| | - N M Ali
- Government College University - GCU, Department of Zoology, Lahore, Pakistan
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23
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Khan SA, Imran M, Tabassum R, Maroof F, Munir S, Khan EA, Malik MI. Impact of COVID-19 Pandemic on Delayed/Missed Routine Immunization in Children (0-24 Months) in Islamabad, Pakistan. Asia Pac J Public Health 2021; 34:140-142. [PMID: 34565212 DOI: 10.1177/10105395211048617] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Sabeen Abid Khan
- Shifa college of medicine, Shifa Tameer-e-Millat University, Islamabad, Pakistan
| | - Muhammad Imran
- Shifa college of medicine, Shifa Tameer-e-Millat University, Islamabad, Pakistan
| | - Rabia Tabassum
- Federal Government Polyclinic Hospital, Islamabad, Pakistan
| | - Fatima Maroof
- Shifa college of medicine, Shifa Tameer-e-Millat University, Islamabad, Pakistan
| | - Shahzad Munir
- Federal Government Polyclinic Hospital, Islamabad, Pakistan
| | - Ejaz Ahmad Khan
- Shifa college of medicine, Shifa Tameer-e-Millat University, Islamabad, Pakistan
| | - Munir Iqbal Malik
- Shifa college of medicine, Shifa Tameer-e-Millat University, Islamabad, Pakistan
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24
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Munir S, Ahmed A, Li Y, He P, Singh BK, He P, Li X, Asad S, Wu Y, He Y. The hidden treasures of citrus: finding Huanglongbing cure where it was lost. Crit Rev Biotechnol 2021; 42:634-649. [PMID: 34325576 DOI: 10.1080/07388551.2021.1942780] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Huanglongbing (HLB), a deadly citrus disease which has significantly downsized the entire industry worldwide. The intractable and incurable disease has brought the citriculture an enormous loss of productivity. With no resistant varieties available, failure of chemical treatments despite repeated applications, and hazardous consequences to environmental health, have led to large-scale research to find a sustainable cure. Inside plants, the key determinants of health and safety, live the endophytic microbes. Endophytes possess unrivaled plant benefiting properties. The progression of HLB is known to cause disturbance in endophytic bacterial communities. Given the importance of the plant endophytic microbiome in disease progression, the notion of engineering microbiomes through indigenous endophytes is attracting scientific attention which is considered revolutionary as it precludes the incompatibility concerns associated with the use of alien (microbes from other plant species) endophytes. In this review, we briefly discuss the transformation of the plant-pathogen-environment to the plant-pathogen-microbial system in a disease triangle. We also argue the employment of indigenous endophytes isolated from a healthy state to engineer the diseased citrus endophytic microbiomes that can provide sustainable solution for vascular pathogens. We evaluated the plethora of microbiomes responses to the re-introduction of endophytes which leads to disease resistance in the citrus host. The idea is not merely confined to citrus-HLB, but it is globally applicable for tailoring a customized cure for general plant-pathogen systems particularly for the diseases caused by the vascular system-restricted pathogens.
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Affiliation(s)
- Shahzad Munir
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, P. R. China
| | - Ayesha Ahmed
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, P. R. China
| | - Yongmei Li
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, P. R. China
| | - Pengbo He
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, P. R. China
| | - Brajesh K Singh
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith South, Australia.,Global Centre for Land Based Innovation, Western Sydney University, Penrith South, Australia
| | - Pengfei He
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, P. R. China
| | - Xingyu Li
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, P. R. China
| | - Suhail Asad
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, P. R. China
| | - Yixin Wu
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, P. R. China.,College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, P. R. China
| | - Yueqiu He
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, P. R. China
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Li X, Munir S, Xu Y, Wang Y, He Y. Combined mass spectrometry-guided genome mining and virtual screening for acaricidal activity in secondary metabolites of Bacillus velezensis W1. RSC Adv 2021; 11:25441-25449. [PMID: 35478879 PMCID: PMC9037071 DOI: 10.1039/d1ra01326b] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 07/12/2021] [Indexed: 11/21/2022] Open
Abstract
A comprehensive analytic strategy was performed to study the acaricidal activity ingredients of Bacillus velezensis W1, a strain for biological control of Tetranychus urticae. Through genome mining, 14 biosynthetic gene clusters were identified, which encode secondary metabolites, and these were further confirmed by MALDI-TOF-MS or LC-ESI-MS/MS, including bacillomycin D C13–C17, macrolactin A, 7-O-malonyl-macrolactin A, surfactin C14, and surfactin C15. Moreover, 27 volatile compounds were identified by GC-MS, mainly including cyclodipeptides, alkanes, organic acids, and esters. Finally, 43 compounds identified from W1 were used in the virtual screening of acaricidal activity. The results showed that 16 compounds, including cyclodipeptides, bacillomycins, macrolactins, and surfactins, have acaricidal potential. This work provides a base for studying the mechanism of acaricidal action of B. velezensis W1 and a comprehensive strategy for the study of active ingredients from biocontrol strains. A comprehensive analytic strategy was performed to study the acaricidal activity ingredients of Bacillus velezensis W1, a strain for biological control of Tetranychus urticae.![]()
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Affiliation(s)
- Xingyu Li
- College of Science, Yunnan Agricultural University Kunming 650201 China .,Department of Chemistry, Cleveland State University Cleveland OH 44115 USA
| | - Shahzad Munir
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University Kunming 650201 Yunnan China
| | - Yan Xu
- Department of Chemistry, Cleveland State University Cleveland OH 44115 USA
| | - Yuehu Wang
- Key Laboratory of Economic Plants and Biotechnology, Chinese Academy of Sciences Kunming 650201 China
| | - Yueqiu He
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University Kunming 650201 Yunnan China
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Pan Z, Munir S, Li Y, He P, He P, Wu Y, Xie Y, Fu Z, Cai Y, He Y. Deciphering the Bacillus amyloliquefaciens B9601-Y2 as a Potential Antagonist of Tobacco Leaf Mildew Pathogen During Flue-Curing. Front Microbiol 2021; 12:683365. [PMID: 34335509 PMCID: PMC8317063 DOI: 10.3389/fmicb.2021.683365] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 05/17/2021] [Indexed: 11/20/2022] Open
Abstract
Tobacco leaf mildew caused by Rhizopus oryzae (Mucorales, Zygomycota) is an important and devastating post-harvest disease during flue-cured tobacco period, and also is known to cause diseases of fruits and vegetables. In this study, assessment of several candidate biological control agents were first tested in vitro to determine their antifungal activities and potential strains were further applied to tobacco leaves to prevent pathogen colonization during the tobacco-curing process. In vitro screening of 36 bacteria and the isolates of one fungus were performed for their antifungal activities against R. oryzae using dual culture method. Potential five isolates viz. Bacillus amyloliquefaciens B9601-Y2 (Y2), B. amyloliquefaciens YN201728 (YN28), Pseudomonas sp. (Pb), and B. amyloliquefaciens YN201732 (YN32) and T. harzianum B (Th-B) from total screened isolates have shown remarkable results for controlling the mycelial growth of R. oryzae. Finally, out of these five isolates, B. amyloliquefaciens B9601-Y2 potentially reduced the mycelial growth of fungal pathogen with great inhibitory effect. In order to get a better understanding of the biocontrol effect of B9601-Y2 in a flue-curing barn, various suspension density tests with two application methods involving spraying and soaking were examined. Two application methods of B. amyloliquefaciens B9601-Y2 had 98.60 and 98.15% control effects, respectively. In curing barn, the incidence in the treatment group was significantly reduced and tobacco leaves did not get mildew. Altogether, the study demonstrated that candidate bacterial strain B. amyloliquefaciens B9601-Y2 is a potential antagonist for the management of tobacco leaf mildew during flue-curing.
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Affiliation(s)
- Zuxian Pan
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Shahzad Munir
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Yongmei Li
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Pengbo He
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Pengfei He
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Yixin Wu
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Yan Xie
- Qujing Branch of Yunnan Provincial Tobacco Company, Qujing, China
| | - Zongwei Fu
- Qujing Branch of Yunnan Provincial Tobacco Company, Qujing, China
| | - Yongzhan Cai
- Qujing Branch of Yunnan Provincial Tobacco Company, Qujing, China
| | - Yueqiu He
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
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Jiao R, Cai Y, He P, Munir S, Li X, Wu Y, Wang J, Xia M, He P, Wang G, Yang H, Karunarathna SC, Xie Y, He Y. Bacillus amyloliquefaciens YN201732 Produces Lipopeptides With Promising Biocontrol Activity Against Fungal Pathogen Erysiphe cichoracearum. Front Cell Infect Microbiol 2021; 11:598999. [PMID: 34222035 PMCID: PMC8253258 DOI: 10.3389/fcimb.2021.598999] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 04/20/2021] [Indexed: 01/10/2023] Open
Abstract
Bacillus amyloliquefaciens YN201732 is an endophytic bacteria with high biocontrol efficiency and broad-spectrum antimicrobial activities. In order to clarify the main active ingredients and their antifungal mechanisms against powdery mildew of tobacco, this study is focused on lipopeptide obtained through acid precipitation and organic solvent extraction. HPLC and LCMS-IT-TOF were used to separate and identify antimicrobial lipopeptides. Findings revealed that bacillomycin D plays an important role against surrogate fungal pathogen Fusarium solani. Synthetic pathways of sfp, bacillomycin D, and fengycin were separately disrupted. The sfp gene knockout mutant B. amyloliquefaciens YN201732M1 only showed minor antagonistic activity against F. solani. While Erysiphe cichoracearum spore germination was inhibited and pot experiments displayed a significant decrease in tobacco powdery mildew. The spore inhibition rate of YN201732M1 was only 30.29%, and the pot experiment control effect was less than 37.39%, which was significantly lower than that of the wild type. The inhibitory effect of mutant YN201732M2 (deficient in the production of bacillomycin D) and mutant YN201732M3 (deficient in the production of fengycin) on the spore germination of E. cichoracearum were 50.22% and 53.06%, respectively, suggesting that both fengycin and bacillomycin D had potential effects on spore germination of powdery mildew. Interestingly, in a greenhouse assay, both B. amyloliquefaciens YN201732M2 and YN201732M3 mutants displayed less of a control effect on tobacco powdery mildew than wild type. The results from in vitro, spore germination, and greenhouse-pot studies demonstrated that antimicrobial lipopeptides especially bacillomycin D and fengycin may contribute to the prevention and control of tobacco powdery mildew. In addition, gene mutation related to lipopeptide synthesis can also affect the biofilm formation of strains.
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Affiliation(s)
- Rong Jiao
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China.,Science and Technology Division, Yuxi Normal University, Yuxi, China
| | | | - Pengfei He
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Shahzad Munir
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Xingyu Li
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Yixin Wu
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Junwei Wang
- Hongta Tobacco (Group) Co., Ltd., Yuxi, China
| | - Mengyuan Xia
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Pengbo He
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Ge Wang
- Faculty of Tobacco Science, Yunnan Agricultural University, Kunming, China
| | - Huanwen Yang
- Faculty of Tobacco Science, Yunnan Agricultural University, Kunming, China
| | - Samantha C Karunarathna
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Science, Kunming, China
| | - Yan Xie
- Qujing Tobacco Co., Ltd., Qujing, China
| | - Yueqiu He
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, China
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Afzal T, Ashraf N, Munir S, Tabassum R. Megaloblastic anaemia in a 9-weeks old infant: A case report. J PAK MED ASSOC 2021; 70:923-925. [PMID: 32400755 DOI: 10.5455/jpma.23379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Megaloblastic anaemia due to vitamin B12 and folic acid deficiency is uncommon in infancy and rarely reported in infants below 3 months of age. We hereby report a case of megaloblastic anaemia in a 9-weeks old infant having fever from 7th week of life. Blood picture showed pancytopenia and diagnosis was confirmed on bone marrow biopsy and serum level of vitamins. Patient positively responded to vitamin B12 and folic acid supplementation. Infants with pancytopenia even younger than 2 months, should also be investigated for vitamin B12 and folate deficiency. Mother of the baby was not antenatally investigated for anaemia. Prompt antenatal diagnosis and treatment of mothers can reduce the incidence in the infants.
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Affiliation(s)
- Tehreem Afzal
- Department of Paediatrics, Federal Government Polyclinic (PGMI), Islamabad, Pakistan
| | - Naveed Ashraf
- Department of Paediatrics, Federal Government Polyclinic (PGMI), Islamabad, Pakistan
| | - Shahzad Munir
- Department of Paediatrics, Federal Government Polyclinic (PGMI), Islamabad, Pakistan
| | - Rabia Tabassum
- Department of Paediatrics, Federal Government Polyclinic (PGMI), Islamabad, Pakistan
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Munir S, Li Y, He P, He P, He P, Cui W, Wu Y, Li X, Li Q, Zhang S, Xiong Y, Lu Z, Wang W, Zong K, Yang Y, Yang S, Mu C, Wen H, Wang Y, Guo J, Karunarathna SC, He Y. Defeating Huanglongbing Pathogen Candidatus Liberibacter asiaticus With Indigenous Citrus Endophyte Bacillus subtilis L1-21. Front Plant Sci 2021; 12:789065. [PMID: 35126416 PMCID: PMC8813962 DOI: 10.3389/fpls.2021.789065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 11/26/2021] [Indexed: 05/11/2023]
Abstract
Huanglongbing (HLB) has turned into a devastating botanical pandemic of citrus crops, caused by Candidatus Liberibacter asiaticus (CLas). However, until now the disease has remained incurable with very limited control strategies available. Restoration of the affected microbiomes in the diseased host through the introduction of an indigenous endophyte Bacillus subtilis L1-21 isolated from healthy citrus may provide an innovative approach for disease management. A novel half-leaf method was developed in vitro to test the efficacy of the endophyte L1-21 against CLas. Application of B. subtilis L1-21 at 104 colony forming unit (cfu ml-1) resulted in a 1,000-fold reduction in the CLas copies per gram of leaf midrib (107 to 104) in 4 days. In HLB-affected citrus orchards over a period of 2 years, the CLas incidence was reduced to < 3%, and CLas copies declined from 109 to 104 g-1 of diseased leaf midribs in the endophyte L1-21 treated trees. Reduction in disease incidence may corroborate a direct or an indirect biocontrol effect of the endophytes as red fluorescent protein-labeled B. subtilis L1-21 colonized and shared niche (phloem) with CLas. This is the first large-scale study for establishing a sustainable HLB control strategy through citrus endophytic microbiome restructuring using an indigenous endophyte.
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Affiliation(s)
- Shahzad Munir
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Yongmei Li
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Pengbo He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Pengfei He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Pengjie He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Wenyan Cui
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Yixin Wu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Xingyu Li
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Qi Li
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Sixiang Zhang
- Binchuan Institute for Food and Medicine Inspection and Testing, Binchuan, China
| | - Yangsu Xiong
- Binchuan Institute for Food and Medicine Inspection and Testing, Binchuan, China
| | - Zhanjun Lu
- College of Life Sciences, Gannan Normal University, Ganzhou, China
| | - Wenbiao Wang
- Binchuan Institute for Food and Medicine Inspection and Testing, Binchuan, China
| | - Kexian Zong
- Binchuan Institute for Food and Medicine Inspection and Testing, Binchuan, China
| | - Yongchao Yang
- Institute of Upland Crops, Wenshan Academy of Agricultural Sciences, Wenshan, China
| | - Shaocong Yang
- Institute of Crop Fertilization, Yuxi Academy of Agricultural Sciences, Yuxi, China
| | - Chan Mu
- Institute of Crop Fertilization, Yuxi Academy of Agricultural Sciences, Yuxi, China
| | - Heming Wen
- Institute of Upland Crops, Wenshan Academy of Agricultural Sciences, Wenshan, China
| | - Yuehu Wang
- Key Laboratory of Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences (CAS), Kunming, China
| | - Jun Guo
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agricultural Sciences, Baoshan, China
| | - Samantha C. Karunarathna
- Center for Mountain Futures (CMF), Kunming Institute of Botany, Chinese Academy of Sciences (CAS), Kunming, China
| | - Yueqiu He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
- *Correspondence: Yueqiu He
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30
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Khan N, Mamas MA, Moss A, Gorog DA, Nightingale P, Armesilla A, Smallwood A, Munir S, Khogali S, Wrigley B, Cotton JM. Aspirin related platelet reactivity as a determinant of ten year survival in high risk non-ST segment elevation myocardial infarction (NSTEMI) patients. Thromb Res 2020; 196:523-525. [PMID: 33099177 DOI: 10.1016/j.thromres.2020.09.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 08/13/2020] [Accepted: 09/09/2020] [Indexed: 10/23/2022]
Affiliation(s)
- Nazish Khan
- Department of Cardiology, Heart and Lung Centre, New Cross Hospital, Wolverhampton, West Midlands WV10 0QP, England, United Kingdom.
| | - Mamas A Mamas
- Keele Cardiovascular Research Group, Keele University, Stoke-on-Trent, United Kingdom; Department of Cardiology, Royal Stoke University Hospital, Stoke-on-Trent, United Kingdom
| | - Alexandra Moss
- Department of Cardiology, Heart and Lung Centre, New Cross Hospital, Wolverhampton, West Midlands WV10 0QP, England, United Kingdom
| | - Diana A Gorog
- University of Hertfordshire, Hertfordshire, United Kingdom; Imperial College, London, United Kingdom
| | - Peter Nightingale
- Institute of Translational Medicine, Heritage Building (Queen Elizabeth Hospital) University Hospitals Birmingham NHS Foundation Trust, Birmingham B15 2TH, United Kingdom
| | - Angel Armesilla
- Research institute in Healthcare Science, Faculty of Science and Engineering, University of Wolverhampton, United Kingdom
| | - Andrew Smallwood
- Department of Cardiology, Heart and Lung Centre, New Cross Hospital, Wolverhampton, West Midlands WV10 0QP, England, United Kingdom
| | - Shahzad Munir
- Department of Cardiology, Heart and Lung Centre, New Cross Hospital, Wolverhampton, West Midlands WV10 0QP, England, United Kingdom
| | - Saib Khogali
- Department of Cardiology, Heart and Lung Centre, New Cross Hospital, Wolverhampton, West Midlands WV10 0QP, England, United Kingdom
| | - Ben Wrigley
- Department of Cardiology, Heart and Lung Centre, New Cross Hospital, Wolverhampton, West Midlands WV10 0QP, England, United Kingdom
| | - James M Cotton
- Department of Cardiology, Heart and Lung Centre, New Cross Hospital, Wolverhampton, West Midlands WV10 0QP, England, United Kingdom; Research institute in Healthcare Science, Faculty of Science and Engineering, University of Wolverhampton, United Kingdom
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O'Gallagher K, Shabeeh H, Munir S, Roomi A, Jiang B, Guilcher A, Brett S, Chowienczyk P. Effects of Inhibition of Nitric Oxide Synthase on Muscular Arteries During Exercise: Nitric Oxide Does Not Contribute to Vasodilation During Exercise or in Recovery. J Am Heart Assoc 2020; 9:e013849. [PMID: 32781940 PMCID: PMC7660814 DOI: 10.1161/jaha.119.013849] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Background Basal release of nitric oxide (NO) from the vascular endothelium regulates the tone of muscular arteries and resistance vasculature. Effects of NO on muscular arteries could be particularly important during exercise when shear stress may stimulate increased NO synthesis. Methods and Results We investigated acute effects of NO synthase inhibition on exercise hemodynamics using NG‐monomethyl‐l‐arginine (l‐NMMA), a nonselective NO synthase ‐inhibitor. Healthy volunteers (n=10, 5 female, 19–33 years) participated in a 2‐phase randomized crossover study, receiving l‐NMMA (6 mg/kg, iv over 5 minutes) or placebo before bicycle exercise (25–150 W for 12 minutes). Blood pressure, cardiac output (measured by dilution of soluble and inert tracers) and femoral artery diameter were measured before, during, and after exercise. At rest, l‐NMMA reduced heart rate (by 16.2±4.3 bpm relative to placebo, P<0.01), increased peripheral vascular resistance (by 7.0±1.4 mmHg per L/min, P<0.001), mean arterial blood pressure (by 8.9±3.5 mmHg, P<0.05), and blunted an increase in femoral artery diameter that occurred immediately before exercise (change in diameter: 0.14±0.04 versus 0.32±0.06 mm after l‐NMMA and placebo, P<0.01). During/after exercise l‐NMMA had no significant effect on peripheral resistance, cardiac output, or on femoral artery diameter. Conclusions These results suggest that NO plays little role in modulating muscular artery function during exercise but that it may mediate changes in muscular artery tone immediately before exercise.
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Affiliation(s)
- Kevin O'Gallagher
- Cardiovascular Division Department of Clinical Pharmacology King's College London School of Medicine St Thomas' Hospital London United Kingdom
| | - Husain Shabeeh
- Cardiovascular Division Department of Clinical Pharmacology King's College London School of Medicine St Thomas' Hospital London United Kingdom
| | - Shahzad Munir
- Cardiovascular Division Department of Clinical Pharmacology King's College London School of Medicine St Thomas' Hospital London United Kingdom
| | - Ali Roomi
- Cardiovascular Division Department of Clinical Pharmacology King's College London School of Medicine St Thomas' Hospital London United Kingdom
| | - Benyu Jiang
- Cardiovascular Division Department of Clinical Pharmacology King's College London School of Medicine St Thomas' Hospital London United Kingdom
| | - Antoine Guilcher
- Cardiovascular Division Department of Clinical Pharmacology King's College London School of Medicine St Thomas' Hospital London United Kingdom
| | - Sally Brett
- Cardiovascular Division Department of Clinical Pharmacology King's College London School of Medicine St Thomas' Hospital London United Kingdom
| | - Philip Chowienczyk
- Cardiovascular Division Department of Clinical Pharmacology King's College London School of Medicine St Thomas' Hospital London United Kingdom
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Munir S, Li Y, He P, Huang M, He P, He P, Cui W, Wu Y, He Y. Core endophyte communities of different citrus varieties from citrus growing regions in China. Sci Rep 2020; 10:3648. [PMID: 32108149 PMCID: PMC7046616 DOI: 10.1038/s41598-020-60350-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 02/11/2020] [Indexed: 02/07/2023] Open
Abstract
The native microbiomes of citrus trees play important roles in plant health, with good communication between the native microbiome and the host plant. Here, we report on the native endophytes in 24 citrus varieties in nine citrus growing regions in China; some of the trees were healthy and others had asymptomatic or symptomatic huanglongbing, which is caused by the pathogen Candidatus Liberibacter asiaticus (CLas). We used culture-dependent analysis and characterized the isolates by partial 16S rRNA gene sequencing. The endophytes were compared between different citrus varieties, regions, and disease states (healthy, asymptomatic, and symptomatic). The total number of endophytes isolated from most of the citrus varieties was 104-106 CFU/g of leaves, but it differed significantly by disease state, with the highest numbers in the healthy leaves and the lowest in the symptomatic leaves (p < 0.05). Among the citrus varieties, the Valencia variety had the maximum number of endophyte species (22). The most dominant endophytes were Bacillus subtilis, B. velezensis, Curtobacterium luteum, and Microbacterium testaceum. The higher frequency of B. subtilis in the healthy/asymptomatic plants compared to the symptomatic plants suggests that it has a role in huanglongbing resistance. Native endophyte communities in various citrus varieties could be used to improve citrus growth and combat CLas.
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Affiliation(s)
- Shahzad Munir
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
| | - Yongmei Li
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
| | - Pengfei He
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
| | - Min Huang
- Agriculture College and Urban Modern Agriculture Engineering Research Center, Kunming University, Kunming, 650214, Yunnan, China
| | - Pengbo He
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
| | - Pengjie He
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
| | - Wenyan Cui
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
| | - Yixin Wu
- National and Local Joint Engineering Research Center for Screening and Application of Microbial Strains, Kunming, 650217, Yunnan, China
- Faculty of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
| | - Yueqiu He
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming, 650201, Yunnan, China.
- National and Local Joint Engineering Research Center for Screening and Application of Microbial Strains, Kunming, 650217, Yunnan, China.
- Faculty of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, 650201, Yunnan, China.
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Munir S, Li Y, He P, He P, Ahmed A, Wu Y, He Y. Unraveling the metabolite signature of citrus showing defense response towards Candidatus Liberibacter asiaticus after application of endophyte Bacillus subtilis L1-21. Microbiol Res 2020; 234:126425. [PMID: 32035248 DOI: 10.1016/j.micres.2020.126425] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 01/17/2020] [Accepted: 01/30/2020] [Indexed: 10/25/2022]
Abstract
Huanglongbing (HLB) is one of the most serious citrus diseases, caused by phloem limited endophytic bacteria Candidatus Liberibacter asiaticus (Clas), affecting worldwide citrus production. Metabolomics approaches were employed to gain insight into mechanisms involved in defense against Clas in endophyte Bacillus subtilis L1-21 treated diseased and healthy citrus plants. Using LC-ESI-MS/MS, we compared the metabolic profile of citrus plants before and after treatment with endophyte L1-21. Our analysis indicated large differences in citrus metabolites after endophyte L1-21 application. In total, seven hundred and fourty two metabolites were detected with highest percentage recorded for organic acids, flavone, amino acid derivatives, flavone C-glycosides, nucleotide derivatives, and flavonol. Interestingly, differentially expressed metabolites (DEMs) analysis revealed the amino acids, such as lysine and tyrosine which are involved in plant defense agianst pathogen attack were regulated in diseased citrus plants after endophyte application (padj<0.05). In addition, other important metabolites up-regulated were xanthine, leucic acid, and α-Linolenic acid implicated in different plant defense pathways against Clas. Furhter, Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis revealed important pathways related to purine metabolism, biotin metabolism, and betalain biosynthesis, terpenoid-quinone biosynthesis, phenylalanine, tyrosine and lysine biosynthesis, isoflavonoid biosynthesis (padj<0.05). Taken together, this is the first study using native endophytes in diseased and healthy state of citrus which has proven to be useful in disease management by strengthening the defense of citrus to Clas pathogen.
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Affiliation(s)
- Shahzad Munir
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Yongmei Li
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Pengfei He
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Pengbo He
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Ayesha Ahmed
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Yixin Wu
- National and Local Joint Engineering Research Center for Screening and Application of Microbial Strains, Kunming 650217, Yunnan, China; College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Yueqiu He
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan Agricultural University, Kunming 650201, Yunnan, China; National and Local Joint Engineering Research Center for Screening and Application of Microbial Strains, Kunming 650217, Yunnan, China; College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, Yunnan, China.
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Mirza S, Qurat-ul-Ain B, Haque A, Gova M, Shahani M, Munir S, Rehman F, Ahmad A. Spectrum of invasive critical procedures performed by clinical fellows in the pediatric intensive care unit of a developing country. J Pediatr Crit Care 2020. [DOI: 10.4103/jpcc.jpcc_118_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Codner P, Saada M, Sakhov O, Polad J, Malik FTN, Munir S, Mamas M, Crowley J, Monsegu J, Perez L, Kedev S, Austin D, Roguin A. Proximal Left Anterior Descending Artery Treatment Using a Bioresorbable Polymer Coating Sirolimus-Eluting Stent: Real-World Outcomes From the Multicenter Prospective e-Ultimaster Registry. J Am Heart Assoc 2019; 8:e013786. [PMID: 31787055 PMCID: PMC6912975 DOI: 10.1161/jaha.119.013786] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Guidelines recommend heart team discussion and coronary artery bypass graft consideration in patients with proximal left anterior descending (LAD) artery stenosis. Evidence suggests that outcomes of proximal LAD angioplasty might not differ from treatment of nonproximal LAD locations. We aim to determine clinical outcomes of patients undergoing percutaneous coronary intervention in the proximal LAD segment in comparison with nonproximal LAD angioplasty, using a thin-strut drug-eluting stent. Methods and Results In this analysis of the e-Ultimaster registry, patients undergoing angioplasty in the proximal LAD territory were compared with those treated in nonproximal LAD locations. Multivariate analysis and propensity score were used to adjust for differences among the groups. The primary outcome was target lesion failure: a composite of cardiac death, target-lesion-related myocardial infarction, and/or clinically driven target lesion revascularization at 1-year follow-up. Of the 17 805 patients (mean age, 64.2±11; 76% male), 5452 (30.6%) underwent proximal LAD and 12 353 (69.4%) nonproximal LAD percutaneous coronary intervention. Patients in the proximal LAD group had more multivessel disease (48.7% versus 43.5%; P<0.001) and 2-fold more bifurcations lesions (18.8% versus 9.2%; P<0.0001). After propensity-weighted adjustment, target lesion failure did not differ between the groups (3.3% versus 2.9%; P=0.17 for proximal LAD versus nonproximal LAD angioplasty, respectively). In multivariate analysis, proximal LAD treatment was not an independent predictor of target lesion failure (odds ratio, 1.07; 95% CI, 0.88-1.31; P=0.48). Conclusions At 1-year follow-up, patients had similar clinical outcomes independent of stenting location, questioning whether proximal LAD treatment should be regarded differently from stenting in any other coronary artery territory.
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Affiliation(s)
- Pablo Codner
- Department of Cardiology Hillel Yaffe Medical Center Hadera Israel.,The Rappaport Faculty of Medicine Technion-Israel Institute of Technology Haifa Israel
| | - Majdi Saada
- Department of Cardiology Hillel Yaffe Medical Center Hadera Israel.,The Rappaport Faculty of Medicine Technion-Israel Institute of Technology Haifa Israel
| | - Orazbek Sakhov
- Department of Interventional Cardiology City Heart Center Almaty Kazakhstan
| | - Jawed Polad
- Department of Cardiology Jeroen Bosch Hospital 's-Hertogenbosch The Netherlands
| | - Fazila Tun-Nesa Malik
- Department of Cardiology National Heart Foundation Hospital & Research Institute Dhaka Bangladesh
| | - Shahzad Munir
- Department of Cardiology Royal Wolverhampton Hospital Wolverhampton United Kingdom
| | - Mamas Mamas
- Keele Cardiovascular Research Group Center of Prognosis Research Institute of Primary Care Sciences Keele University Stoke on Trent United Kingdom
| | | | - Jacques Monsegu
- Institut Cardiovasculaire Groupe Hospitalier Mutualiste de Grenoble Grenoble France
| | - Luis Perez
- Hospital Guillermo Grant Benavente Concepcion Chile
| | - Sasko Kedev
- University Clinic of Cardiology Skopje Macedonia
| | - David Austin
- James Cook University Hospital Middleborough United Kingdom
| | - Ariel Roguin
- Department of Cardiology Hillel Yaffe Medical Center Hadera Israel.,The Rappaport Faculty of Medicine Technion-Israel Institute of Technology Haifa Israel
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Huang M, He P, Munir S, Wu Y, Li X, He P, He Y. Ecology and etiology of bacterial top rot in maize caused by Klebsiella pneumoniae KpC4. Microb Pathog 2019; 139:103906. [PMID: 31786257 DOI: 10.1016/j.micpath.2019.103906] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 11/28/2019] [Accepted: 11/28/2019] [Indexed: 10/25/2022]
Abstract
Klebsiella pneumoniae is an important opportunistic pathogen in humans and animals. Recently, K. pneumoniae KpC4 was identified as a causative agent of bacterial top rot in maize, which has been observed in many areas of Yunnan province, China. KpC4 is potentially dangerous to humans and livestock due to its cross-kingdom infection ability. Our study revealed the disease cycle of maize bacterial top rot caused by KpC4 and the ecological adaptability and host range of KpC4. We found same pathogenicity in maize between KpC4, the environmental strains E1, E4 (K1 serotype), E5, and the clinical strain K. pneumoniae 138 (Kp138). Alternative hosts of K. pneumoniae include not only humans and animals but also a variety of plants (such as maize, banana and sorghum). One of the survival strategies of K. pneumoniae is ecological adaptability, which is an essential factor for KpC4 to be able to cause bacterial top rot in maize. K. pneumoniae, for example, could survive in large numbers (2.34 ± 0.22 × 103 cfu/g) not only in the maize leaves (2.34 ± 0.22 × 103 cfu/g) under natural light, but persist in dried maize plant debris (1.51 × 104 cfu/g) for at least 6 months. K. pneumoniae strains from different sources can generally induce infection in susceptible hosts. Thus, this study revealed the ecological basis of KpC4 cross-kingdom infections, laying the foundation for the study of the mechanisms underlying cross-kingdom infections involving this type of human/animal opportunistic pathogen.
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Affiliation(s)
- Min Huang
- College of Plant Protection, Yunnan Agricultural University, Kunming, 650201, Yunnan, China; College of Agriculture and Life Sciences, Urban Modern Agriculture Engineering Research Center, Kunming University, Kunming, 650214, China
| | - Pengfei He
- College of Plant Protection, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
| | - Shahzad Munir
- College of Plant Protection, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
| | - Yixin Wu
- College of Plant Protection, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
| | - Xingyu Li
- College of Plant Protection, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
| | - Pengbo He
- College of Plant Protection, Yunnan Agricultural University, Kunming, 650201, Yunnan, China
| | - Yueqiu He
- College of Plant Protection, Yunnan Agricultural University, Kunming, 650201, Yunnan, China.
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Tsanaxidis N, Elshafie S, Munir S. Spontaneous coronary artery dissection in a patient with cerebral autosomal dominant arteriopathy with subcortical infarcts and leucoencephalopathy syndrome: a case report. Eur Heart J Case Rep 2019; 3:ytz136. [PMID: 31660501 PMCID: PMC6764544 DOI: 10.1093/ehjcr/ytz136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 03/11/2019] [Accepted: 07/29/2019] [Indexed: 11/29/2022]
Abstract
Background Cerebral autosomal dominant arteriopathy with subcortical infarcts and leucoencephalopathy (CADASIL) syndrome is a genetically inherited condition most notably affecting the central nervous system in young adults. There is limited knowledge on its association with coronary arteries, and its association with spontaneous coronary artery dissection (SCAD) has not been previously reported. Case summary A 61-year-old woman who is known to have CADASIL syndrome presented with anterior ST-segment myocardial infarction and underwent emergency angiography. This showed appearance consistent with SCAD in the mid left anterior descending artery with tubular stenosis. Discussion The association between CADASIL syndrome and SCAD has not been previously reported. The similarity in the underlying pathophysiology of these two conditions makes this case intriguing.
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Affiliation(s)
- Nikolaos Tsanaxidis
- Cardiology Department, Wolverhampton Heart and Lung Centre, New Cross Hospital, Wolverhampton Road, Wolverhampton WV10 0QP, UK
| | - Sally Elshafie
- Cardiology Department, Wolverhampton Heart and Lung Centre, New Cross Hospital, Wolverhampton Road, Wolverhampton WV10 0QP, UK
| | - Shahzad Munir
- Cardiology Department, Wolverhampton Heart and Lung Centre, New Cross Hospital, Wolverhampton Road, Wolverhampton WV10 0QP, UK
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Cui W, He P, Munir S, He P, He Y, Li X, Yang L, Wang B, Wu Y, He P. Biocontrol of Soft Rot of Chinese Cabbage Using an Endophytic Bacterial Strain. Front Microbiol 2019; 10:1471. [PMID: 31333608 PMCID: PMC6616379 DOI: 10.3389/fmicb.2019.01471] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Accepted: 06/12/2019] [Indexed: 11/25/2022] Open
Abstract
Soft rot caused by Pectobacterium carotovorum subsp. carotovorum (Pcc) is a major constraint in the production of Chinese cabbage. The objective of this study was to demonstrate that the causative agent Pcc may be successfully managed by Bacillus amyloliquefaciens KC-1, both in vitro and in vivo. Chinese cabbage seedlings were cultivated in organic substrate termed bio-organic substrate using a floating-seedling system with B. amyloliquefaciens KC-1. This approach was applied in a greenhouse to evaluate the management of soft rot. The results showed that the extent of soft rot, as well as the transmission of Pcc to the stem progeny and its survival in the rhizosphere, was reduced following inoculation with B. amyloliquefaciens KC-1. In contrast, the population diversity of B. amyloliquefaciens KC-1 persisted in the Chinese cabbage stems after germination. These findings revealed that B. amyloliquefaciens KC-1 was able to survive and suppress the growth of Pcc in Chinese cabbage and its rhizosphere, protecting the host from the pathogen. The use of B. amyloliquefaciens KC-1 throughout the growth period of plants may be an effective strategy for the prevention of soft rot in Chinese cabbage.
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Affiliation(s)
- Wenyan Cui
- Guizhou University of Traditional Chinese Medicine, Guiyang, China.,Faculty of Plant Protection, Yunnan Agricultural University, Kunming, China
| | - Pengjie He
- Guizhou University of Traditional Chinese Medicine, Guiyang, China.,Faculty of Plant Protection, Yunnan Agricultural University, Kunming, China
| | - Shahzad Munir
- Faculty of Plant Protection, Yunnan Agricultural University, Kunming, China
| | - Pengbo He
- Faculty of Plant Protection, Yunnan Agricultural University, Kunming, China
| | - Yueqiu He
- National and Local Joint Engineering Research Center for Screening and Application of Microbial Strains, Kunming, China.,Faculty of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Xingyu Li
- National and Local Joint Engineering Research Center for Screening and Application of Microbial Strains, Kunming, China.,Faculty of Science, Yunnan Agricultural University, Kunming, China
| | - Lijuan Yang
- Faculty of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Biao Wang
- Faculty of Plant Protection, Yunnan Agricultural University, Kunming, China
| | - Yixin Wu
- National and Local Joint Engineering Research Center for Screening and Application of Microbial Strains, Kunming, China.,Faculty of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China
| | - Pengfei He
- Faculty of Plant Protection, Yunnan Agricultural University, Kunming, China.,National and Local Joint Engineering Research Center for Screening and Application of Microbial Strains, Kunming, China
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Ubaid S, Ford TJ, Berry C, Murray HM, Wrigley B, Khan N, Thomas MR, Armesilla AL, Townend JN, Khogali SS, Munir S, Martins J, Hothi SS, McAlindon EJ, Cotton JM. Cangrelor versus Ticagrelor in Patients Treated with Primary Percutaneous Coronary Intervention: Impact on Platelet Activity, Myocardial Microvascular Function and Infarct Size: A Randomized Controlled Trial. Thromb Haemost 2019; 119:1171-1181. [PMID: 31129911 DOI: 10.1055/s-0039-1688789] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
BACKGROUND Oral P2Y12 inhibitors take more than 2 hours to achieve full effect in healthy subjects and this action is further delayed in patients with acute myocardial infarction. Intravenous P2Y12 inhibition might lead to more timely and potent anti-platelet effect in the context of emergency primary angioplasty, improving myocardial recovery. OBJECTIVES This article compares the efficacy of intravenous cangrelor versus ticagrelor in a ST-elevation myocardial infarction (STEMI) population treated with primary percutaneous coronary intervention (PPCI). MATERIALS AND METHODS In an open-label, prospective, randomized controlled trial, 100 subjects with STEMI were assigned 1:1 to intravenous cangrelor or oral ticagrelor. The co-primary endpoints were platelet P2Y12 inhibition at infarct vessel balloon inflation time, 4 and 24 hours. Secondary endpoints included indices of coronary microcirculatory function: index of microvascular resistance (IMR), initial infarct size (troponin at 24 hours) and final infarct size at 12 weeks (cardiac magnetic resonance). Secondary endpoints included indices of coronary microcirculatory function (index of microvascular resistance [IMR]), initial infarct size (troponin at 24 hours), final infarct size at 12 weeks (cardiac magnetic resonance), corrected thrombolysis in myocardial infarction (TIMI) frame count, TIMI flow grade, myocardial perfusion grade, and ST-segment resolution (ClinicalTrials.gov NCT02733341). RESULTS P2Y12 inhibition at first balloon inflation time was significantly greater in cangrelor-treated patients (cangrelor P2Y12 reaction unit [PRU] 145.2 ± 50.6 vs. ticagrelor 248.3 ± 55.1). There was no difference in mean PRU at 4 and 24 to 36 hours post-dosing. IMR, final infarct size, angiographic and electrocardiographic measures of reperfusion were all similar between groups. CONCLUSION Cangrelor produces more potent P2Y12 inhibition at the time of first coronary balloon inflation time compared with ticagrelor. Despite this enhanced P2Y12 inhibition, coronary microvascular function and final infarct size did not differ between groups.
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Affiliation(s)
- Salahaddin Ubaid
- Heart and Lung Centre, New Cross Hospital, Wolverhampton, United Kingdom
| | - Thomas J Ford
- Golden Jubilee National Hospital, Glasgow, United Kingdom.,British Heart Foundation Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, United Kingdom
| | - Colin Berry
- Golden Jubilee National Hospital, Glasgow, United Kingdom.,British Heart Foundation Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow, United Kingdom
| | - Heather M Murray
- Robertson Centre for Biostatistics, Institute of Health and Wellbeing, University of Glasgow, Glasgow, United Kingdom
| | - Benjamin Wrigley
- Heart and Lung Centre, New Cross Hospital, Wolverhampton, United Kingdom
| | - Nazish Khan
- Heart and Lung Centre, New Cross Hospital, Wolverhampton, United Kingdom
| | - Mark R Thomas
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Angel L Armesilla
- School of Pharmacy, University of Wolverhampton, Wolverhampton, United Kingdom
| | - Jon N Townend
- Queen Elizabeth Hospital, Birmingham, United Kingdom
| | - Saib S Khogali
- Heart and Lung Centre, New Cross Hospital, Wolverhampton, United Kingdom
| | - Shahzad Munir
- Heart and Lung Centre, New Cross Hospital, Wolverhampton, United Kingdom
| | - Joe Martins
- Heart and Lung Centre, New Cross Hospital, Wolverhampton, United Kingdom
| | - Sandeep S Hothi
- Heart and Lung Centre, New Cross Hospital, Wolverhampton, United Kingdom
| | - Elisa J McAlindon
- Heart and Lung Centre, New Cross Hospital, Wolverhampton, United Kingdom
| | - James M Cotton
- Heart and Lung Centre, New Cross Hospital, Wolverhampton, United Kingdom.,School of Pharmacy, University of Wolverhampton, Wolverhampton, United Kingdom
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Farooq U, Lu D, Munir S, Ramzan M, Suleman M, Hussain S. MHD flow of Maxwell fluid with nanomaterials due to an exponentially stretching surface. Sci Rep 2019; 9:7312. [PMID: 31086204 PMCID: PMC6513985 DOI: 10.1038/s41598-019-43549-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 04/23/2019] [Indexed: 01/09/2023] Open
Abstract
In many industrial products stretching surfaces and magnetohydrodynamics are being used. The purpose of this article is to analyze magnetohydrodynamics (MHD) non-Newtonian Maxwell fluid with nanomaterials in a surface which is stretching exponentially. Thermophoretic and Brownian motion effects are incorporated using Buongiorno model. The given partial differential system is converted into nonlinear ordinary differential system by employing adequate self-similarity transformations. Locally series solutions are computed using BVPh 2.0 for wide range of governing parameters. It is observed that the flow is expedite for higher Deborah and Hartman numbers. The impact of thermophoresis parameter on the temperature profile is minimal. Mathematically, this study describes the reliability of BVPh 2.0 and physically we may conclude the study of stretching surfaces for non-Newtonian Maxwell fluid in the presence of nanoparticles can be used to obtain desired qualities.
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Affiliation(s)
- Umer Farooq
- Department of Mathematics, Faculty of Science, Jiangsu University, 212013, Zhenjiang, China. .,Department of Mathematics, COMSATS University Islamabad, Park road, Tarlai Kalan, 44000, Islamabad, Pakistan.
| | - Dianchen Lu
- Department of Mathematics, Faculty of Science, Jiangsu University, 212013, Zhenjiang, China.
| | - Shahzad Munir
- Department of Mathematics, COMSATS University Islamabad, Park road, Tarlai Kalan, 44000, Islamabad, Pakistan
| | - Muhammad Ramzan
- Department of Mechanical Engineering, Sejong University, Seoul, 143-747, Korea.,Department of Computer Science, Bahria University, Islamabad Campus, Islamabad, 44000, Pakistan
| | - Muhammad Suleman
- Department of Mathematics, Faculty of Science, Jiangsu University, 212013, Zhenjiang, China.,Department of Mathematics, COMSATS University Islamabad, Park road, Tarlai Kalan, 44000, Islamabad, Pakistan
| | - Shahid Hussain
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang, 212013, China
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Ubaid S, Ford TJ, Berry C, Wrigley B, Thomas M, Murray H, Vickers J, Armesilla, Townend J, Khogali S, Munir S, Martins J, Jaumdally R, McAlindon EJ, Cotton JM. Intravenous cangrelor vs oral ticagrelor in patients with acute ST-segment elevation myocardial infarction undergoing primary percutaneous intervention: A randomised controlled trial. Clin Med (Lond) 2019. [DOI: 10.7861/clinmedicine.19-2-s128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Jamal MA, Ahmed AM, Tahir M, Ashraf M, Sattar A, Ghafoor A, Munir S, Ahmed I, Hussain M, Riaz A. Safety and efficacy of ketamine xylazine along with atropine anesthesia in BALB/c mice. BRAZ J PHARM SCI 2019. [DOI: 10.1590/s2175-97902019000317231] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
| | | | | | | | - Abdul Sattar
- University of Veterinary and Animal Sciences, Pakistan
| | - Aamir Ghafoor
- University of Veterinary and Animal Sciences, Pakistan
| | | | | | | | - Amjad Riaz
- University of Veterinary and Animal Sciences, Pakistan
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Li XY, Wang YH, Yang J, Cui WY, He PJ, Munir S, He PF, Wu YX, He YQ. Acaricidal Activity of Cyclodipeptides from Bacillus amyloliquefaciens W1 against Tetranychus urticae. J Agric Food Chem 2018; 66:10163-10168. [PMID: 30200767 DOI: 10.1021/acs.jafc.8b03806] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Bioassay-guided fractionation of the supernatant of the biocontrol strain Bacillus amyloliquefaciens W1 led to the isolation of eight acaricidal cyclodipeptides from the active fractions by column chromatography separation and HPLC purification. The chemical structures of these compounds were identified as cyclo-(Gly-l-Phe), 2, cyclo-(l-Phe- trans-4-OH-l-Pro), 3, cyclo-(Gly-l-Tyr), 4, cyclo-(l-Ala-l-Pro), 5, cyclo-(l-Pro- trans-4-OH-l-Pro), 6, cyclo-(Gly-l-Pro), 7, cyclo-(l-Pro-l-Pro), 8, and cyclo-(l-Tyr- trans-4-OH-l-Pro), 9. Those cyclodipeptides displayed significant acaricidal activities with LC50 values of 13.85-98.24 μM. Cyclo-(l-Tyr- trans-4-OH-l-Pro) (LC50 13.85 μM) was five times more effective than the positive control abamectin (LC50 72.06 μM). The results indicated that the hydroxyl group is an important component. This is the first report on the acaricidal capabilities of cyclodipeptides against Tetranychus urticae. The results revealed that the acaricidal activity of the biocontrol strain B. amyloliquefaciens W1 was dependent on its constituent cyclodipeptides, which have the potential to be safe and environmentally friendly acaricides.
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Affiliation(s)
- Xing-Yu Li
- Yunnan Agricultural University , Kunming 650201 , China
- Microorganism Fermentation Engineer Research Center of Yunnan , Kunming 650217 , China
| | - Yue-Hu Wang
- Key Laboratory of Economic Plants and Biotechnology and Yunnan Key Laboratory for Wild Plant Resources , Chinese Academy of Sciences , Kunming 650201 , China
| | - Jun Yang
- Key Laboratory of Economic Plants and Biotechnology and Yunnan Key Laboratory for Wild Plant Resources , Chinese Academy of Sciences , Kunming 650201 , China
| | - Wen-Yan Cui
- Yunnan Agricultural University , Kunming 650201 , China
| | - Peng-Jie He
- Yunnan Agricultural University , Kunming 650201 , China
| | - Shahzad Munir
- Yunnan Agricultural University , Kunming 650201 , China
| | - Peng-Fei He
- Yunnan Agricultural University , Kunming 650201 , China
- Microorganism Fermentation Engineer Research Center of Yunnan , Kunming 650217 , China
| | - Yi-Xin Wu
- Yunnan Agricultural University , Kunming 650201 , China
- Microorganism Fermentation Engineer Research Center of Yunnan , Kunming 650217 , China
| | - Yue-Qiu He
- Yunnan Agricultural University , Kunming 650201 , China
- Microorganism Fermentation Engineer Research Center of Yunnan , Kunming 650217 , China
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Hussain M, Munir S, Khan TA, Khan A, Ayaz S, Jamal MA, Ahmed I, Aziz S, Watany N, Kasbari M. Epidemiology of Cutaneous Leishmaniasis Outbreak, Waziristan, Pakistan. Emerg Infect Dis 2018; 24:159-161. [PMID: 29260674 PMCID: PMC5749458 DOI: 10.3201/eid2401.170358] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
During 2013–2015, prevalence of cutaneous leishmaniasis in war-affected Waziristan areas was 3.61% by PCR. Youths (1–15 years of age) were more susceptible. Internal transcribed spacer 1 PCR followed by restriction fragment length polymorphism analysis identified Leishmania tropica in 215 samples and Leishmania major in 6 samples.
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Mubbashir H, Munir S, Kashif R, Nawaz HB, Abdul B, Baharullah K. Characterization of dengue virus in Aedes aegypti and Aedes albopictus spp. of mosquitoes: A study in Khyber Pakhtunkhwa, Pakistan. Mol Biol Res Commun 2018; 7:77-82. [PMID: 30046621 PMCID: PMC6054776 DOI: 10.22099/mbrc.2018.29073.1315] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Dengue is a vector-borne disease caused by dengue virus. According to the recent report of CDC that one-third population of the world are at high risk with Dengue fever. The prevalence of the dengue hemorrhagic fever was found more in tropical and sub-tropical regions of the world. Aedes mosquitoes was reported as the main cause of transmission of dengue virus. So the current study was planned to characterize the virus in Aedes mosquitoes collected from different area of Pakistan. In current investigation, Aedes mosquitoes and larvae were trapped under conducive conditions which are counted as 495 Aedes mosquitoes and 260 Aedes larvae. First of all, adult mosquitoes were identified morphologically under microscopy, counted as 73.3% Ae. aegypti and 26.7% Ae. albopictus. Finally, reverse transcriptase polymerase chain reaction analyses that only 4 adults of Aedes mosquitoes and 10 Aedes larvae as naturally infected with dengue virus with possible source Ae. aegypti. This study basically uncovered the presence of virus in different species of mosquitoes in southern regions of Pakistan. The present study will also give us an insight for vector control programs of dengue virus in the affected area.
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Affiliation(s)
- Hussain Mubbashir
- Vector Borne Diseases Lab, Department of Microbiology, Kohat University of Science and Technology, Kohat, Khyber Pakhtunkhwa, 26000 Pakistan
| | - Shahzad Munir
- Faculty of Plant Protection, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Rahim Kashif
- Beijing Key Laboratory of Genetic Engineering Drug and Biotechnology, Institute of Biochemistry and Biotechnology, College of Life Sciences, Beijing Normal University, Beijing 100875, China
| | - Haider Bashir Nawaz
- Faculty of Plant Protection, Yunnan Agricultural University, Kunming 650201, Yunnan, China
| | - Basit Abdul
- Vector Borne Diseases Lab, Department of Microbiology, Kohat University of Science and Technology, Kohat, Khyber Pakhtunkhwa, 26000 Pakistan
| | - Khattak Baharullah
- Vector Borne Diseases Lab, Department of Microbiology, Kohat University of Science and Technology, Kohat, Khyber Pakhtunkhwa, 26000 Pakistan
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Munir S, He P, Wu Y, He P, Khan S, Huang M, Cui W, He P, He Y. Huanglongbing Control: Perhaps the End of the Beginning. Microb Ecol 2018; 76:192-204. [PMID: 29196843 DOI: 10.1007/s00248-017-1123-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 11/23/2017] [Indexed: 05/25/2023]
Abstract
Huanglongbing (HLB) is one of the most destructive citrus plant diseases worldwide. It is associated with the fastidious phloem-limited α-proteobacteria 'Candidatus Liberibacter asiaticus', 'Ca. Liberibacter africanus' and 'Ca. Liberibacter americanus'. In recent years, HLB-associated Liberibacters have extended to North and South America. The causal agents of HLB have been putatively identified, and their transmission pathways and worldwide population structure have been extensively studied. However, very little is known about the epidemiologic relationships of Ca. L. asiaticus, which has limited the scope of HLB research and especially the development of control strategies. HLB-affected plants produce damaged fruits and die within several years. To control the disease, scientists have developed new compounds and screened existing compounds for their antibiotic and antimicrobial activities against the disease. These compounds, however, have very little or even no effect on the disease. The aim of the present review was to compile and compare different methods of HLB disease control with newly developed integrative strategies. In light of recent studies, we also describe how to control the vectors of this disease and the biological control of other citrus plant pathogens. This work could steer the attention of scientists towards integrative control strategies.
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Affiliation(s)
- Shahzad Munir
- Faculty of Plant Protection, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
| | - Pengfei He
- Faculty of Plant Protection, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
| | - Yixin Wu
- Faculty of Plant Protection, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
| | - Pengbo He
- Faculty of Plant Protection, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
| | - Sehroon Khan
- World Agroforestry Centre, East and Central Asia, 132 Lanhei Rd, Heilongtan, Kunming, Yunnan, 650201, China
- Key Laboratory of Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, 650201, China
| | - Min Huang
- Faculty of Plant Protection, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
- Agriculture College and Urban Modern Agriculture Engineering Research Center, Kunming University, Kunming, 650214, China
| | - Wenyan Cui
- Faculty of Plant Protection, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
| | - Pengjie He
- Faculty of Plant Protection, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
| | - Yueqiu He
- Faculty of Plant Protection, Yunnan Agricultural University, Kunming, Yunnan, 650201, China.
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Basu A, Munir S, Mulaw M, Singh K, Herold B, Crisan D, Sindrilaru A, Treiber N, Wlaschek M, Huber-Lang M, Gebhard F, Scharffetter-Kochanek K. 1422 A novel S100A8/A9 induced fingerprint of mesenchymal stem cells is associated with enhanced wound healing. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.1440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Ubaid S, Ford T, Berry C, Khogali S, Wrigley B, Munir S, Martins J, Jaumdally R, Amoah V, Khan N, Jon T, McAlindon E, Cotton J. THE EFFECT OF CANGRELOR VERSUS TICAGRELOR ON PLATELET ACTIVITY, CORONARY MICRO-CIRCULAR FUNCTION AND INFARCT SIZE IN PATIENTS SUFFERING ACUTE ST-SEGMENT ELEVATION MYOCARDIAL INFARCTION TREATED WITH PRIMARY PERCUTANEOUS CORONARY INTERVENTION: A RANDOMIZED CONTROLLED TRIAL. J Am Coll Cardiol 2018. [DOI: 10.1016/s0735-1097(18)31929-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Munir S, Riaz M, Asghar Z. On evaluating the performance of different forecasters. COMMUN STAT-SIMUL C 2018. [DOI: 10.1080/03610918.2017.1288242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Shahzad Munir
- Department of Statistics, Quaid-i-Azam University, Islamabad, Pakistan
| | - Muhammad Riaz
- Department of Mathematics and Statistics, King Fahad University of Petroleum and Minerals, Dhahran, Saudi Arabia
| | - Zahid Asghar
- Department of Statistics, Quaid-i-Azam University, Islamabad, Pakistan
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